Home / 665,127,935,998.40-997,691,903,997.60-168,821,563,390.40

Finding the Fourth Proportional to 665,127,935,998.40, 997,691,903,997.60 and 168,821,563,390.40

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Solution

The fourth proportional to 665,127,935,998.40, 997,691,903,997.60 and 168,821,563,390.40 is: 253,232,345,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,127,935,998.40 : 997,691,903,997.60 = 168,821,563,390.40 : x
  2. Step 2: Convert to fraction form
    665,127,935,998.40/997,691,903,997.60 = 168,821,563,390.40/x
  3. Step 3: Cross multiply
    665,127,935,998.40x = 997,691,903,997.60 × 168,821,563,390.40
  4. Step 4: Simplify right side
    665,127,935,998.40x = 168,431,907,014,819,690,053,632
  5. Step 5: Solve for x
    x = 168,431,907,014,819,690,053,632/665,127,935,998.40
  6. Step 6: Final answer
    x = 253,232,345,085.60

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Double scale
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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.