Home / 10,142,397.91-15,177,230.85-8,780,854.93

Finding the Fourth Proportional to 10,142,397.91, 15,177,230.85 and 8,780,854.93

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Solution

The fourth proportional to 10,142,397.91, 15,177,230.85 and 8,780,854.93 is: 13,139,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142,397.91 : 15,177,230.85 = 8,780,854.93 : x
  2. Step 2: Convert to fraction form
    10,142,397.91/15,177,230.85 = 8,780,854.93/x
  3. Step 3: Cross multiply
    10,142,397.91x = 15,177,230.85 × 8,780,854.93
  4. Step 4: Simplify right side
    10,142,397.91x = 133,269,062,332,970.58
  5. Step 5: Solve for x
    x = 133,269,062,332,970.58/10,142,397.91
  6. Step 6: Final answer
    x = 13,139,798.25

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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.