Home / 158,981,947.20-238,472,920.80-147,502,821.60

Finding the Fourth Proportional to 158,981,947.20, 238,472,920.80 and 147,502,821.60

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Solution

The fourth proportional to 158,981,947.20, 238,472,920.80 and 147,502,821.60 is: 221,254,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,981,947.20 : 238,472,920.80 = 147,502,821.60 : x
  2. Step 2: Convert to fraction form
    158,981,947.20/238,472,920.80 = 147,502,821.60/x
  3. Step 3: Cross multiply
    158,981,947.20x = 238,472,920.80 × 147,502,821.60
  4. Step 4: Simplify right side
    158,981,947.20x = 35,175,428,693,193,328
  5. Step 5: Solve for x
    x = 35,175,428,693,193,328/158,981,947.20
  6. Step 6: Final answer
    x = 221,254,232.40

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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.