Home / 20,741,520.90-28,623,294.38-11,449,088.55

Finding the Fourth Proportional to 20,741,520.90, 28,623,294.38 and 11,449,088.55

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Solution

The fourth proportional to 20,741,520.90, 28,623,294.38 and 11,449,088.55 is: 15,799,739.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741,520.90 : 28,623,294.38 = 11,449,088.55 : x
  2. Step 2: Convert to fraction form
    20,741,520.90/28,623,294.38 = 11,449,088.55/x
  3. Step 3: Cross multiply
    20,741,520.90x = 28,623,294.38 × 11,449,088.55
  4. Step 4: Simplify right side
    20,741,520.90x = 327,710,631,949,337.38
  5. Step 5: Solve for x
    x = 327,710,631,949,337.38/20,741,520.90
  6. Step 6: Final answer
    x = 15,799,739.74

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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.