Home / 289,491,225.75-399,500,976.66-157,332,229.10

Finding the Fourth Proportional to 289,491,225.75, 399,500,976.66 and 157,332,229.10

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Solution

The fourth proportional to 289,491,225.75, 399,500,976.66 and 157,332,229.10 is: 217,120,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,491,225.75 : 399,500,976.66 = 157,332,229.10 : x
  2. Step 2: Convert to fraction form
    289,491,225.75/399,500,976.66 = 157,332,229.10/x
  3. Step 3: Cross multiply
    289,491,225.75x = 399,500,976.66 × 157,332,229.10
  4. Step 4: Simplify right side
    289,491,225.75x = 62,854,379,182,760,704
  5. Step 5: Solve for x
    x = 62,854,379,182,760,704/289,491,225.75
  6. Step 6: Final answer
    x = 217,120,152.85

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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.