Home / 285,344,649.96-427,290,371.88-188,005,251.78

Finding the Fourth Proportional to 285,344,649.96, 427,290,371.88 and 188,005,251.78

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Solution

The fourth proportional to 285,344,649.96, 427,290,371.88 and 188,005,251.78 is: 281,529,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,344,649.96 : 427,290,371.88 = 188,005,251.78 : x
  2. Step 2: Convert to fraction form
    285,344,649.96/427,290,371.88 = 188,005,251.78/x
  3. Step 3: Cross multiply
    285,344,649.96x = 427,290,371.88 × 188,005,251.78
  4. Step 4: Simplify right side
    285,344,649.96x = 80,332,833,948,469,232
  5. Step 5: Solve for x
    x = 80,332,833,948,469,232/285,344,649.96
  6. Step 6: Final answer
    x = 281,529,140.15

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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.