Home / 396,559,309.12-547,227,856.64-220,341,279.05

Finding the Fourth Proportional to 396,559,309.12, 547,227,856.64 and 220,341,279.05

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Solution

The fourth proportional to 396,559,309.12, 547,227,856.64 and 220,341,279.05 is: 304,057,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,559,309.12 : 547,227,856.64 = 220,341,279.05 : x
  2. Step 2: Convert to fraction form
    396,559,309.12/547,227,856.64 = 220,341,279.05/x
  3. Step 3: Cross multiply
    396,559,309.12x = 547,227,856.64 × 220,341,279.05
  4. Step 4: Simplify right side
    396,559,309.12x = 120,576,885,863,847,632
  5. Step 5: Solve for x
    x = 120,576,885,863,847,632/396,559,309.12
  6. Step 6: Final answer
    x = 304,057,635.49

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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.