Home / 665,127,935,998.90-997,691,903,998.35-168,821,563,390.90

Finding the Fourth Proportional to 665,127,935,998.90, 997,691,903,998.35 and 168,821,563,390.90

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Solution

The fourth proportional to 665,127,935,998.90, 997,691,903,998.35 and 168,821,563,390.90 is: 253,232,345,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,127,935,998.90 : 997,691,903,998.35 = 168,821,563,390.90 : x
  2. Step 2: Convert to fraction form
    665,127,935,998.90/997,691,903,998.35 = 168,821,563,390.90/x
  3. Step 3: Cross multiply
    665,127,935,998.90x = 997,691,903,998.35 × 168,821,563,390.90
  4. Step 4: Simplify right side
    665,127,935,998.90x = 168,431,907,015,445,144,666,112
  5. Step 5: Solve for x
    x = 168,431,907,015,445,144,666,112/665,127,935,998.90
  6. Step 6: Final answer
    x = 253,232,345,086.35

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Double scale
Find fourth proportional to 665,127,935,999.90, 997,691,903,999.85 and 168,821,563,391.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.