Home / 20,514,909.89-28,277,728.66-13,897,485.29

Finding the Fourth Proportional to 20,514,909.89, 28,277,728.66 and 13,897,485.29

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Solution

The fourth proportional to 20,514,909.89, 28,277,728.66 and 13,897,485.29 is: 19,156,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514,909.89 : 28,277,728.66 = 13,897,485.29 : x
  2. Step 2: Convert to fraction form
    20,514,909.89/28,277,728.66 = 13,897,485.29/x
  3. Step 3: Cross multiply
    20,514,909.89x = 28,277,728.66 × 13,897,485.29
  4. Step 4: Simplify right side
    20,514,909.89x = 392,989,318,175,027.56
  5. Step 5: Solve for x
    x = 392,989,318,175,027.56/20,514,909.89
  6. Step 6: Final answer
    x = 19,156,278.06

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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.