Home / 221,617,961.40-332,426,942.10-129,784,956.60

Finding the Fourth Proportional to 221,617,961.40, 332,426,942.10 and 129,784,956.60

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Solution

The fourth proportional to 221,617,961.40, 332,426,942.10 and 129,784,956.60 is: 194,677,434.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617,961.40 : 332,426,942.10 = 129,784,956.60 : x
  2. Step 2: Convert to fraction form
    221,617,961.40/332,426,942.10 = 129,784,956.60/x
  3. Step 3: Cross multiply
    221,617,961.40x = 332,426,942.10 × 129,784,956.60
  4. Step 4: Simplify right side
    221,617,961.40x = 43,144,016,253,119,216
  5. Step 5: Solve for x
    x = 43,144,016,253,119,216/221,617,961.40
  6. Step 6: Final answer
    x = 194,677,434.90

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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.