Home / 147,987,346.20-221,981,019.30-141,940,728.60

Finding the Fourth Proportional to 147,987,346.20, 221,981,019.30 and 141,940,728.60

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Solution

The fourth proportional to 147,987,346.20, 221,981,019.30 and 141,940,728.60 is: 212,911,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,987,346.20 : 221,981,019.30 = 141,940,728.60 : x
  2. Step 2: Convert to fraction form
    147,987,346.20/221,981,019.30 = 141,940,728.60/x
  3. Step 3: Cross multiply
    147,987,346.20x = 221,981,019.30 × 141,940,728.60
  4. Step 4: Simplify right side
    147,987,346.20x = 31,508,147,614,812,664
  5. Step 5: Solve for x
    x = 31,508,147,614,812,664/147,987,346.20
  6. Step 6: Final answer
    x = 212,911,092.90

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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.