Home / 28,740,083.72-43,109,719.53-13,378,781.62

Finding the Fourth Proportional to 28,740,083.72, 43,109,719.53 and 13,378,781.62

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Solution

The fourth proportional to 28,740,083.72, 43,109,719.53 and 13,378,781.62 is: 20,067,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740,083.72 : 43,109,719.53 = 13,378,781.62 : x
  2. Step 2: Convert to fraction form
    28,740,083.72/43,109,719.53 = 13,378,781.62/x
  3. Step 3: Cross multiply
    28,740,083.72x = 43,109,719.53 × 13,378,781.62
  4. Step 4: Simplify right side
    28,740,083.72x = 576,755,523,291,319
  5. Step 5: Solve for x
    x = 576,755,523,291,319/28,740,083.72
  6. Step 6: Final answer
    x = 20,067,983.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.