Home / 1,231,344,200.45-1,699,255,912.76-666,833,464.10

Finding the Fourth Proportional to 1,231,344,200.45, 1,699,255,912.76 and 666,833,464.10

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Solution

The fourth proportional to 1,231,344,200.45, 1,699,255,912.76 and 666,833,464.10 is: 920,230,676.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,344,200.45 : 1,699,255,912.76 = 666,833,464.10 : x
  2. Step 2: Convert to fraction form
    1,231,344,200.45/1,699,255,912.76 = 666,833,464.10/x
  3. Step 3: Cross multiply
    1,231,344,200.45x = 1,699,255,912.76 × 666,833,464.10
  4. Step 4: Simplify right side
    1,231,344,200.45x = 1,133,120,706,701,606,144
  5. Step 5: Solve for x
    x = 1,133,120,706,701,606,144/1,231,344,200.45
  6. Step 6: Final answer
    x = 920,230,676.59

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.