Home / 147,987,357.60-221,981,036.40-45,761,728.80

Finding the Fourth Proportional to 147,987,357.60, 221,981,036.40 and 45,761,728.80

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Solution

The fourth proportional to 147,987,357.60, 221,981,036.40 and 45,761,728.80 is: 68,642,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,987,357.60 : 221,981,036.40 = 45,761,728.80 : x
  2. Step 2: Convert to fraction form
    147,987,357.60/221,981,036.40 = 45,761,728.80/x
  3. Step 3: Cross multiply
    147,987,357.60x = 221,981,036.40 × 45,761,728.80
  4. Step 4: Simplify right side
    147,987,357.60x = 10,158,235,986,479,728
  5. Step 5: Solve for x
    x = 10,158,235,986,479,728/147,987,357.60
  6. Step 6: Final answer
    x = 68,642,593.20

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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.