Home / 288,902,035.60-398,687,062.11-169,792,641.05

Finding the Fourth Proportional to 288,902,035.60, 398,687,062.11 and 169,792,641.05

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Solution

The fourth proportional to 288,902,035.60, 398,687,062.11 and 169,792,641.05 is: 234,315,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,902,035.60 : 398,687,062.11 = 169,792,641.05 : x
  2. Step 2: Convert to fraction form
    288,902,035.60/398,687,062.11 = 169,792,641.05/x
  3. Step 3: Cross multiply
    288,902,035.60x = 398,687,062.11 × 169,792,641.05
  4. Step 4: Simplify right side
    288,902,035.60x = 67,694,129,227,273,328
  5. Step 5: Solve for x
    x = 67,694,129,227,273,328/288,902,035.60
  6. Step 6: Final answer
    x = 234,315,168.76

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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.