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Finding the Fourth Proportional to 89,455,687.80, 134,183,531.70 and 38,342,873.40

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Solution

The fourth proportional to 89,455,687.80, 134,183,531.70 and 38,342,873.40 is: 57,514,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,455,687.80 : 134,183,531.70 = 38,342,873.40 : x
  2. Step 2: Convert to fraction form
    89,455,687.80/134,183,531.70 = 38,342,873.40/x
  3. Step 3: Cross multiply
    89,455,687.80x = 134,183,531.70 × 38,342,873.40
  4. Step 4: Simplify right side
    89,455,687.80x = 5,144,982,168,337,987
  5. Step 5: Solve for x
    x = 5,144,982,168,337,987/89,455,687.80
  6. Step 6: Final answer
    x = 57,514,310.10

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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.