Home / 20,274,084.90-27,955,822.16-12,920,275.53

Finding the Fourth Proportional to 20,274,084.90, 27,955,822.16 and 12,920,275.53

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Solution

The fourth proportional to 20,274,084.90, 27,955,822.16 and 12,920,275.53 is: 17,815,695.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274,084.90 : 27,955,822.16 = 12,920,275.53 : x
  2. Step 2: Convert to fraction form
    20,274,084.90/27,955,822.16 = 12,920,275.53/x
  3. Step 3: Cross multiply
    20,274,084.90x = 27,955,822.16 × 12,920,275.53
  4. Step 4: Simplify right side
    20,274,084.90x = 361,196,924,910,278.38
  5. Step 5: Solve for x
    x = 361,196,924,910,278.38/20,274,084.90
  6. Step 6: Final answer
    x = 17,815,695.59

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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.