Home / 465,664,166.10-698,496,249.15-428,040,767.70

Finding the Fourth Proportional to 465,664,166.10, 698,496,249.15 and 428,040,767.70

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Solution

The fourth proportional to 465,664,166.10, 698,496,249.15 and 428,040,767.70 is: 642,061,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,664,166.10 : 698,496,249.15 = 428,040,767.70 : x
  2. Step 2: Convert to fraction form
    465,664,166.10/698,496,249.15 = 428,040,767.70/x
  3. Step 3: Cross multiply
    465,664,166.10x = 698,496,249.15 × 428,040,767.70
  4. Step 4: Simplify right side
    465,664,166.10x = 298,984,870,721,736,448
  5. Step 5: Solve for x
    x = 298,984,870,721,736,448/465,664,166.10
  6. Step 6: Final answer
    x = 642,061,151.55

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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.