Home / 28,386,613.76-42,579,309.29-7,915,787.91

Finding the Fourth Proportional to 28,386,613.76, 42,579,309.29 and 7,915,787.91

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Solution

The fourth proportional to 28,386,613.76, 42,579,309.29 and 7,915,787.91 is: 11,873,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,613.76 : 42,579,309.29 = 7,915,787.91 : x
  2. Step 2: Convert to fraction form
    28,386,613.76/42,579,309.29 = 7,915,787.91/x
  3. Step 3: Cross multiply
    28,386,613.76x = 42,579,309.29 × 7,915,787.91
  4. Step 4: Simplify right side
    28,386,613.76x = 337,048,781,654,353.75
  5. Step 5: Solve for x
    x = 337,048,781,654,353.75/28,386,613.76
  6. Step 6: Final answer
    x = 11,873,511.39

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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.