Home / 221,429,607.20-332,144,410.80-129,218,688.80

Finding the Fourth Proportional to 221,429,607.20, 332,144,410.80 and 129,218,688.80

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Solution

The fourth proportional to 221,429,607.20, 332,144,410.80 and 129,218,688.80 is: 193,828,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,429,607.20 : 332,144,410.80 = 129,218,688.80 : x
  2. Step 2: Convert to fraction form
    221,429,607.20/332,144,410.80 = 129,218,688.80/x
  3. Step 3: Cross multiply
    221,429,607.20x = 332,144,410.80 × 129,218,688.80
  4. Step 4: Simplify right side
    221,429,607.20x = 42,919,265,255,824,560
  5. Step 5: Solve for x
    x = 42,919,265,255,824,560/221,429,607.20
  6. Step 6: Final answer
    x = 193,828,033.20

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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.