Home / 15,234,131.90-21,023,099.71-8,707,901.49

Finding the Fourth Proportional to 15,234,131.90, 21,023,099.71 and 8,707,901.49

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Solution

The fourth proportional to 15,234,131.90, 21,023,099.71 and 8,707,901.49 is: 12,016,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234,131.90 : 21,023,099.71 = 8,707,901.49 : x
  2. Step 2: Convert to fraction form
    15,234,131.90/21,023,099.71 = 8,707,901.49/x
  3. Step 3: Cross multiply
    15,234,131.90x = 21,023,099.71 × 8,707,901.49
  4. Step 4: Simplify right side
    15,234,131.90x = 183,067,081,267,357.81
  5. Step 5: Solve for x
    x = 183,067,081,267,357.81/15,234,131.90
  6. Step 6: Final answer
    x = 12,016,902.73

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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.