Home / 129,510,069.60-194,240,221.20-38,636,623.20

Finding the Fourth Proportional to 129,510,069.60, 194,240,221.20 and 38,636,623.20

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Solution

The fourth proportional to 129,510,069.60, 194,240,221.20 and 38,636,623.20 is: 57,947,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,510,069.60 : 194,240,221.20 = 38,636,623.20 : x
  2. Step 2: Convert to fraction form
    129,510,069.60/194,240,221.20 = 38,636,623.20/x
  3. Step 3: Cross multiply
    129,510,069.60x = 194,240,221.20 × 38,636,623.20
  4. Step 4: Simplify right side
    129,510,069.60x = 7,504,786,236,789,052
  5. Step 5: Solve for x
    x = 7,504,786,236,789,052/129,510,069.60
  6. Step 6: Final answer
    x = 57,947,511.42

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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.