Home / 15,123,792.08-20,870,737.53-8,597,421.86

Finding the Fourth Proportional to 15,123,792.08, 20,870,737.53 and 8,597,421.86

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Solution

The fourth proportional to 15,123,792.08, 20,870,737.53 and 8,597,421.86 is: 11,864,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123,792.08 : 20,870,737.53 = 8,597,421.86 : x
  2. Step 2: Convert to fraction form
    15,123,792.08/20,870,737.53 = 8,597,421.86/x
  3. Step 3: Cross multiply
    15,123,792.08x = 20,870,737.53 × 8,597,421.86
  4. Step 4: Simplify right side
    15,123,792.08x = 179,434,535,055,548.31
  5. Step 5: Solve for x
    x = 179,434,535,055,548.31/15,123,792.08
  6. Step 6: Final answer
    x = 11,864,387.85

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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.