Home / 15,191,885.28-20,964,800.13-8,222,561.61

Finding the Fourth Proportional to 15,191,885.28, 20,964,800.13 and 8,222,561.61

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Solution

The fourth proportional to 15,191,885.28, 20,964,800.13 and 8,222,561.61 is: 11,347,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,885.28 : 20,964,800.13 = 8,222,561.61 : x
  2. Step 2: Convert to fraction form
    15,191,885.28/20,964,800.13 = 8,222,561.61/x
  3. Step 3: Cross multiply
    15,191,885.28x = 20,964,800.13 × 8,222,561.61
  4. Step 4: Simplify right side
    15,191,885.28x = 172,384,360,635,491.16
  5. Step 5: Solve for x
    x = 172,384,360,635,491.16/15,191,885.28
  6. Step 6: Final answer
    x = 11,347,134.18

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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.