Home / 159,479,460.30-239,219,190.45-78,857,892.30

Finding the Fourth Proportional to 159,479,460.30, 239,219,190.45 and 78,857,892.30

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Solution

The fourth proportional to 159,479,460.30, 239,219,190.45 and 78,857,892.30 is: 118,286,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,479,460.30 : 239,219,190.45 = 78,857,892.30 : x
  2. Step 2: Convert to fraction form
    159,479,460.30/239,219,190.45 = 78,857,892.30/x
  3. Step 3: Cross multiply
    159,479,460.30x = 239,219,190.45 × 78,857,892.30
  4. Step 4: Simplify right side
    159,479,460.30x = 18,864,321,156,599,288
  5. Step 5: Solve for x
    x = 18,864,321,156,599,288/159,479,460.30
  6. Step 6: Final answer
    x = 118,286,838.45

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Double scale
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Similar ratio
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1.5x scale

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.