Home / 20,612,613.13-28,456,449.65-15,892,699.95

Finding the Fourth Proportional to 20,612,613.13, 28,456,449.65 and 15,892,699.95

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Solution

The fourth proportional to 20,612,613.13, 28,456,449.65 and 15,892,699.95 is: 21,940,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,613.13 : 28,456,449.65 = 15,892,699.95 : x
  2. Step 2: Convert to fraction form
    20,612,613.13/28,456,449.65 = 15,892,699.95/x
  3. Step 3: Cross multiply
    20,612,613.13x = 28,456,449.65 × 15,892,699.95
  4. Step 4: Simplify right side
    20,612,613.13x = 452,249,815,929,732.50
  5. Step 5: Solve for x
    x = 452,249,815,929,732.50/20,612,613.13
  6. Step 6: Final answer
    x = 21,940,440.69

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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.