Home / 15,538,213.71-21,435,932.48-14,817,815.91

Finding the Fourth Proportional to 15,538,213.71, 21,435,932.48 and 14,817,815.91

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Solution

The fourth proportional to 15,538,213.71, 21,435,932.48 and 14,817,815.91 is: 20,442,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538,213.71 : 21,435,932.48 = 14,817,815.91 : x
  2. Step 2: Convert to fraction form
    15,538,213.71/21,435,932.48 = 14,817,815.91/x
  3. Step 3: Cross multiply
    15,538,213.71x = 21,435,932.48 × 14,817,815.91
  4. Step 4: Simplify right side
    15,538,213.71x = 317,633,701,273,740.69
  5. Step 5: Solve for x
    x = 317,633,701,273,740.69/15,538,213.71
  6. Step 6: Final answer
    x = 20,442,098.89

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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.