Home / 381,266,202.56-571,638,217.85-194,157,957.12

Finding the Fourth Proportional to 381,266,202.56, 571,638,217.85 and 194,157,957.12

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Solution

The fourth proportional to 381,266,202.56, 571,638,217.85 and 194,157,957.12 is: 291,103,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,266,202.56 : 571,638,217.85 = 194,157,957.12 : x
  2. Step 2: Convert to fraction form
    381,266,202.56/571,638,217.85 = 194,157,957.12/x
  3. Step 3: Cross multiply
    381,266,202.56x = 571,638,217.85 × 194,157,957.12
  4. Step 4: Simplify right side
    381,266,202.56x = 110,988,108,587,085,232
  5. Step 5: Solve for x
    x = 110,988,108,587,085,232/381,266,202.56
  6. Step 6: Final answer
    x = 291,103,978.91

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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.