Home / 15,149,901.92-20,906,541.24-8,274,411.68

Finding the Fourth Proportional to 15,149,901.92, 20,906,541.24 and 8,274,411.68

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Solution

The fourth proportional to 15,149,901.92, 20,906,541.24 and 8,274,411.68 is: 11,418,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149,901.92 : 20,906,541.24 = 8,274,411.68 : x
  2. Step 2: Convert to fraction form
    15,149,901.92/20,906,541.24 = 8,274,411.68/x
  3. Step 3: Cross multiply
    15,149,901.92x = 20,906,541.24 × 8,274,411.68
  4. Step 4: Simplify right side
    15,149,901.92x = 172,989,329,024,657.66
  5. Step 5: Solve for x
    x = 172,989,329,024,657.66/15,149,901.92
  6. Step 6: Final answer
    x = 11,418,511.48

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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.