Home / 159,609,911.40-239,414,867.10-86,798,557.80

Finding the Fourth Proportional to 159,609,911.40, 239,414,867.10 and 86,798,557.80

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Solution

The fourth proportional to 159,609,911.40, 239,414,867.10 and 86,798,557.80 is: 130,197,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,609,911.40 : 239,414,867.10 = 86,798,557.80 : x
  2. Step 2: Convert to fraction form
    159,609,911.40/239,414,867.10 = 86,798,557.80/x
  3. Step 3: Cross multiply
    159,609,911.40x = 239,414,867.10 × 86,798,557.80
  4. Step 4: Simplify right side
    159,609,911.40x = 20,780,865,180,158,668
  5. Step 5: Solve for x
    x = 20,780,865,180,158,668/159,609,911.40
  6. Step 6: Final answer
    x = 130,197,836.70

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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.