Home / 21,341,531.28-29,455,034.76-12,644,600.40

Finding the Fourth Proportional to 21,341,531.28, 29,455,034.76 and 12,644,600.40

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Solution

The fourth proportional to 21,341,531.28, 29,455,034.76 and 12,644,600.40 is: 17,451,753.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341,531.28 : 29,455,034.76 = 12,644,600.40 : x
  2. Step 2: Convert to fraction form
    21,341,531.28/29,455,034.76 = 12,644,600.40/x
  3. Step 3: Cross multiply
    21,341,531.28x = 29,455,034.76 × 12,644,600.40
  4. Step 4: Simplify right side
    21,341,531.28x = 372,447,144,308,309.94
  5. Step 5: Solve for x
    x = 372,447,144,308,309.94/21,341,531.28
  6. Step 6: Final answer
    x = 17,451,753.55

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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.