Home / 399,315,189.75-598,984,986.93-136,996,061.04

Finding the Fourth Proportional to 399,315,189.75, 598,984,986.93 and 136,996,061.04

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Solution

The fourth proportional to 399,315,189.75, 598,984,986.93 and 136,996,061.04 is: 205,498,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,315,189.75 : 598,984,986.93 = 136,996,061.04 : x
  2. Step 2: Convert to fraction form
    399,315,189.75/598,984,986.93 = 136,996,061.04/x
  3. Step 3: Cross multiply
    399,315,189.75x = 598,984,986.93 × 136,996,061.04
  4. Step 4: Simplify right side
    399,315,189.75x = 82,058,583,831,505,872
  5. Step 5: Solve for x
    x = 82,058,583,831,505,872/399,315,189.75
  6. Step 6: Final answer
    x = 205,498,277.90

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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.