Home / 518,035,658.18-777,456,440.49-361,573,019.25

Finding the Fourth Proportional to 518,035,658.18, 777,456,440.49 and 361,573,019.25

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Solution

The fourth proportional to 518,035,658.18, 777,456,440.49 and 361,573,019.25 is: 542,640,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,035,658.18 : 777,456,440.49 = 361,573,019.25 : x
  2. Step 2: Convert to fraction form
    518,035,658.18/777,456,440.49 = 361,573,019.25/x
  3. Step 3: Cross multiply
    518,035,658.18x = 777,456,440.49 × 361,573,019.25
  4. Step 4: Simplify right side
    518,035,658.18x = 281,107,272,523,327,264
  5. Step 5: Solve for x
    x = 281,107,272,523,327,264/518,035,658.18
  6. Step 6: Final answer
    x = 542,640,777.88

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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.