Home / 288,902,035.10-398,687,061.42-169,792,640.55

Finding the Fourth Proportional to 288,902,035.10, 398,687,061.42 and 169,792,640.55

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Solution

The fourth proportional to 288,902,035.10, 398,687,061.42 and 169,792,640.55 is: 234,315,168.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,902,035.10 : 398,687,061.42 = 169,792,640.55 : x
  2. Step 2: Convert to fraction form
    288,902,035.10/398,687,061.42 = 169,792,640.55/x
  3. Step 3: Cross multiply
    288,902,035.10x = 398,687,061.42 × 169,792,640.55
  4. Step 4: Simplify right side
    288,902,035.10x = 67,694,128,910,772,880
  5. Step 5: Solve for x
    x = 67,694,128,910,772,880/288,902,035.10
  6. Step 6: Final answer
    x = 234,315,168.07

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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.