Home / 15,148,905.30-20,906,005.17-8,959,257.90

Finding the Fourth Proportional to 15,148,905.30, 20,906,005.17 and 8,959,257.90

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Solution

The fourth proportional to 15,148,905.30, 20,906,005.17 and 8,959,257.90 is: 12,364,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148,905.30 : 20,906,005.17 = 8,959,257.90 : x
  2. Step 2: Convert to fraction form
    15,148,905.30/20,906,005.17 = 8,959,257.90/x
  3. Step 3: Cross multiply
    15,148,905.30x = 20,906,005.17 × 8,959,257.90
  4. Step 4: Simplify right side
    15,148,905.30x = 187,302,291,976,763.38
  5. Step 5: Solve for x
    x = 187,302,291,976,763.38/15,148,905.30
  6. Step 6: Final answer
    x = 12,364,080.99

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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.