Home / 399,315,191.76-598,984,989.94-136,996,063.04

Finding the Fourth Proportional to 399,315,191.76, 598,984,989.94 and 136,996,063.04

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Solution

The fourth proportional to 399,315,191.76, 598,984,989.94 and 136,996,063.04 is: 205,498,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,315,191.76 : 598,984,989.94 = 136,996,063.04 : x
  2. Step 2: Convert to fraction form
    399,315,191.76/598,984,989.94 = 136,996,063.04/x
  3. Step 3: Cross multiply
    399,315,191.76x = 598,984,989.94 × 136,996,063.04
  4. Step 4: Simplify right side
    399,315,191.76x = 82,058,585,441,834,016
  5. Step 5: Solve for x
    x = 82,058,585,441,834,016/399,315,191.76
  6. Step 6: Final answer
    x = 205,498,280.89

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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.