Home / 15,191,957.13-20,964,899.21-8,222,633.41

Finding the Fourth Proportional to 15,191,957.13, 20,964,899.21 and 8,222,633.41

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Solution

The fourth proportional to 15,191,957.13, 20,964,899.21 and 8,222,633.41 is: 11,347,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,957.13 : 20,964,899.21 = 8,222,633.41 : x
  2. Step 2: Convert to fraction form
    15,191,957.13/20,964,899.21 = 8,222,633.41/x
  3. Step 3: Cross multiply
    15,191,957.13x = 20,964,899.21 × 8,222,633.41
  4. Step 4: Simplify right side
    15,191,957.13x = 172,386,680,681,428.62
  5. Step 5: Solve for x
    x = 172,386,680,681,428.62/15,191,957.13
  6. Step 6: Final answer
    x = 11,347,233.22

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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.