Home / 221,429,598.20-332,144,397.30-129,218,679.80

Finding the Fourth Proportional to 221,429,598.20, 332,144,397.30 and 129,218,679.80

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Solution

The fourth proportional to 221,429,598.20, 332,144,397.30 and 129,218,679.80 is: 193,828,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,429,598.20 : 332,144,397.30 = 129,218,679.80 : x
  2. Step 2: Convert to fraction form
    221,429,598.20/332,144,397.30 = 129,218,679.80/x
  3. Step 3: Cross multiply
    221,429,598.20x = 332,144,397.30 × 129,218,679.80
  4. Step 4: Simplify right side
    221,429,598.20x = 42,919,260,522,072,688
  5. Step 5: Solve for x
    x = 42,919,260,522,072,688/221,429,598.20
  6. Step 6: Final answer
    x = 193,828,019.70

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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.