Home / 20,487,565.59-28,272,499.01-11,194,931.51

Finding the Fourth Proportional to 20,487,565.59, 28,272,499.01 and 11,194,931.51

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Solution

The fourth proportional to 20,487,565.59, 28,272,499.01 and 11,194,931.51 is: 15,448,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,565.59 : 28,272,499.01 = 11,194,931.51 : x
  2. Step 2: Convert to fraction form
    20,487,565.59/28,272,499.01 = 11,194,931.51/x
  3. Step 3: Cross multiply
    20,487,565.59x = 28,272,499.01 × 11,194,931.51
  4. Step 4: Simplify right side
    20,487,565.59x = 316,508,689,836,155.69
  5. Step 5: Solve for x
    x = 316,508,689,836,155.69/20,487,565.59
  6. Step 6: Final answer
    x = 15,448,818.87

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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.