Home / 15,172,840.20-22,759,260.30-7,981,595.40

Finding the Fourth Proportional to 15,172,840.20, 22,759,260.30 and 7,981,595.40

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Solution

The fourth proportional to 15,172,840.20, 22,759,260.30 and 7,981,595.40 is: 11,972,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,840.20 : 22,759,260.30 = 7,981,595.40 : x
  2. Step 2: Convert to fraction form
    15,172,840.20/22,759,260.30 = 7,981,595.40/x
  3. Step 3: Cross multiply
    15,172,840.20x = 22,759,260.30 × 7,981,595.40
  4. Step 4: Simplify right side
    15,172,840.20x = 181,655,207,317,882.62
  5. Step 5: Solve for x
    x = 181,655,207,317,882.62/15,172,840.20
  6. Step 6: Final answer
    x = 11,972,393.10

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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.