Home / 399,315,191.25-598,984,989.18-136,996,062.54

Finding the Fourth Proportional to 399,315,191.25, 598,984,989.18 and 136,996,062.54

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Solution

The fourth proportional to 399,315,191.25, 598,984,989.18 and 136,996,062.54 is: 205,498,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,315,191.25 : 598,984,989.18 = 136,996,062.54 : x
  2. Step 2: Convert to fraction form
    399,315,191.25/598,984,989.18 = 136,996,062.54/x
  3. Step 3: Cross multiply
    399,315,191.25x = 598,984,989.18 × 136,996,062.54
  4. Step 4: Simplify right side
    399,315,191.25x = 82,058,585,038,224,496
  5. Step 5: Solve for x
    x = 82,058,585,038,224,496/399,315,191.25
  6. Step 6: Final answer
    x = 205,498,280.15

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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.