Home / 15,234,120.90-21,023,084.56-8,707,890.49

Finding the Fourth Proportional to 15,234,120.90, 21,023,084.56 and 8,707,890.49

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Solution

The fourth proportional to 15,234,120.90, 21,023,084.56 and 8,707,890.49 is: 12,016,887.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234,120.90 : 21,023,084.56 = 8,707,890.49 : x
  2. Step 2: Convert to fraction form
    15,234,120.90/21,023,084.56 = 8,707,890.49/x
  3. Step 3: Cross multiply
    15,234,120.90x = 21,023,084.56 × 8,707,890.49
  4. Step 4: Simplify right side
    15,234,120.90x = 183,066,718,005,374.38
  5. Step 5: Solve for x
    x = 183,066,718,005,374.38/15,234,120.90
  6. Step 6: Final answer
    x = 12,016,887.56

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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.