Home / 221,981,036.40-332,971,554.60-68,642,593.20

Finding the Fourth Proportional to 221,981,036.40, 332,971,554.60 and 68,642,593.20

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Solution

The fourth proportional to 221,981,036.40, 332,971,554.60 and 68,642,593.20 is: 102,963,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,981,036.40 : 332,971,554.60 = 68,642,593.20 : x
  2. Step 2: Convert to fraction form
    221,981,036.40/332,971,554.60 = 68,642,593.20/x
  3. Step 3: Cross multiply
    221,981,036.40x = 332,971,554.60 × 68,642,593.20
  4. Step 4: Simplify right side
    221,981,036.40x = 22,856,030,969,579,392
  5. Step 5: Solve for x
    x = 22,856,030,969,579,392/221,981,036.40
  6. Step 6: Final answer
    x = 102,963,889.80

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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.