Home / 396,539,170.57-547,191,164.24-217,913,666.54

Finding the Fourth Proportional to 396,539,170.57, 547,191,164.24 and 217,913,666.54

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Solution

The fourth proportional to 396,539,170.57, 547,191,164.24 and 217,913,666.54 is: 300,702,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,539,170.57 : 547,191,164.24 = 217,913,666.54 : x
  2. Step 2: Convert to fraction form
    396,539,170.57/547,191,164.24 = 217,913,666.54/x
  3. Step 3: Cross multiply
    396,539,170.57x = 547,191,164.24 × 217,913,666.54
  4. Step 4: Simplify right side
    396,539,170.57x = 119,240,432,894,821,376
  5. Step 5: Solve for x
    x = 119,240,432,894,821,376/396,539,170.57
  6. Step 6: Final answer
    x = 300,702,784.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.