Home / 28,357,801.30-42,536,701.95-13,987,753.30

Finding the Fourth Proportional to 28,357,801.30, 42,536,701.95 and 13,987,753.30

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Solution

The fourth proportional to 28,357,801.30, 42,536,701.95 and 13,987,753.30 is: 20,981,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357,801.30 : 42,536,701.95 = 13,987,753.30 : x
  2. Step 2: Convert to fraction form
    28,357,801.30/42,536,701.95 = 13,987,753.30/x
  3. Step 3: Cross multiply
    28,357,801.30x = 42,536,701.95 × 13,987,753.30
  4. Step 4: Simplify right side
    28,357,801.30x = 594,992,893,072,229
  5. Step 5: Solve for x
    x = 594,992,893,072,229/28,357,801.30
  6. Step 6: Final answer
    x = 20,981,629.95

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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.