Home / 159,276,043.40-238,914,065.10-78,654,475.40

Finding the Fourth Proportional to 159,276,043.40, 238,914,065.10 and 78,654,475.40

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Solution

The fourth proportional to 159,276,043.40, 238,914,065.10 and 78,654,475.40 is: 117,981,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,276,043.40 : 238,914,065.10 = 78,654,475.40 : x
  2. Step 2: Convert to fraction form
    159,276,043.40/238,914,065.10 = 78,654,475.40/x
  3. Step 3: Cross multiply
    159,276,043.40x = 238,914,065.10 × 78,654,475.40
  4. Step 4: Simplify right side
    159,276,043.40x = 18,791,660,456,121,948
  5. Step 5: Solve for x
    x = 18,791,660,456,121,948/159,276,043.40
  6. Step 6: Final answer
    x = 117,981,713.10

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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.