Home / 221,617,072.10-332,425,608.15-129,784,067.30

Finding the Fourth Proportional to 221,617,072.10, 332,425,608.15 and 129,784,067.30

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Solution

The fourth proportional to 221,617,072.10, 332,425,608.15 and 129,784,067.30 is: 194,676,100.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617,072.10 : 332,425,608.15 = 129,784,067.30 : x
  2. Step 2: Convert to fraction form
    221,617,072.10/332,425,608.15 = 129,784,067.30/x
  3. Step 3: Cross multiply
    221,617,072.10x = 332,425,608.15 × 129,784,067.30
  4. Step 4: Simplify right side
    221,617,072.10x = 43,143,547,500,383,024
  5. Step 5: Solve for x
    x = 43,143,547,500,383,024/221,617,072.10
  6. Step 6: Final answer
    x = 194,676,100.95

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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.