Home / 649,541,347.10-974,312,020.65-511,791,839.90

Finding the Fourth Proportional to 649,541,347.10, 974,312,020.65 and 511,791,839.90

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Solution

The fourth proportional to 649,541,347.10, 974,312,020.65 and 511,791,839.90 is: 767,687,759.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,541,347.10 : 974,312,020.65 = 511,791,839.90 : x
  2. Step 2: Convert to fraction form
    649,541,347.10/974,312,020.65 = 511,791,839.90/x
  3. Step 3: Cross multiply
    649,541,347.10x = 974,312,020.65 × 511,791,839.90
  4. Step 4: Simplify right side
    649,541,347.10x = 498,644,941,685,150,272
  5. Step 5: Solve for x
    x = 498,644,941,685,150,272/649,541,347.10
  6. Step 6: Final answer
    x = 767,687,759.85

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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.