Home / 438,353,290.47-604,906,044.20-240,115,664.55

Finding the Fourth Proportional to 438,353,290.47, 604,906,044.20 and 240,115,664.55

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Solution

The fourth proportional to 438,353,290.47, 604,906,044.20 and 240,115,664.55 is: 331,347,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,353,290.47 : 604,906,044.20 = 240,115,664.55 : x
  2. Step 2: Convert to fraction form
    438,353,290.47/604,906,044.20 = 240,115,664.55/x
  3. Step 3: Cross multiply
    438,353,290.47x = 604,906,044.20 × 240,115,664.55
  4. Step 4: Simplify right side
    438,353,290.47x = 145,247,416,792,194,112
  5. Step 5: Solve for x
    x = 145,247,416,792,194,112/438,353,290.47
  6. Step 6: Final answer
    x = 331,347,841.91

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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.