Home / 221,434,195.20-332,151,292.80-129,223,276.80

Finding the Fourth Proportional to 221,434,195.20, 332,151,292.80 and 129,223,276.80

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Solution

The fourth proportional to 221,434,195.20, 332,151,292.80 and 129,223,276.80 is: 193,834,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,434,195.20 : 332,151,292.80 = 129,223,276.80 : x
  2. Step 2: Convert to fraction form
    221,434,195.20/332,151,292.80 = 129,223,276.80/x
  3. Step 3: Cross multiply
    221,434,195.20x = 332,151,292.80 × 129,223,276.80
  4. Step 4: Simplify right side
    221,434,195.20x = 42,921,678,448,972,248
  5. Step 5: Solve for x
    x = 42,921,678,448,972,248/221,434,195.20
  6. Step 6: Final answer
    x = 193,834,915.20

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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.