Home / 159,857,729.40-239,786,594.10-87,046,375.80

Finding the Fourth Proportional to 159,857,729.40, 239,786,594.10 and 87,046,375.80

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Solution

The fourth proportional to 159,857,729.40, 239,786,594.10 and 87,046,375.80 is: 130,569,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,857,729.40 : 239,786,594.10 = 87,046,375.80 : x
  2. Step 2: Convert to fraction form
    159,857,729.40/239,786,594.10 = 87,046,375.80/x
  3. Step 3: Cross multiply
    159,857,729.40x = 239,786,594.10 × 87,046,375.80
  4. Step 4: Simplify right side
    159,857,729.40x = 20,872,553,981,830,660
  5. Step 5: Solve for x
    x = 20,872,553,981,830,660/159,857,729.40
  6. Step 6: Final answer
    x = 130,569,563.70

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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.