Home / 159,479,459.80-239,219,189.70-78,857,891.80

Finding the Fourth Proportional to 159,479,459.80, 239,219,189.70 and 78,857,891.80

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Solution

The fourth proportional to 159,479,459.80, 239,219,189.70 and 78,857,891.80 is: 118,286,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,479,459.80 : 239,219,189.70 = 78,857,891.80 : x
  2. Step 2: Convert to fraction form
    159,479,459.80/239,219,189.70 = 78,857,891.80/x
  3. Step 3: Cross multiply
    159,479,459.80x = 239,219,189.70 × 78,857,891.80
  4. Step 4: Simplify right side
    159,479,459.80x = 18,864,320,977,846,272
  5. Step 5: Solve for x
    x = 18,864,320,977,846,272/159,479,459.80
  6. Step 6: Final answer
    x = 118,286,837.70

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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.