Home / 261,719,861.48-361,187,612.26-150,209,810.78

Finding the Fourth Proportional to 261,719,861.48, 361,187,612.26 and 150,209,810.78

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Solution

The fourth proportional to 261,719,861.48, 361,187,612.26 and 150,209,810.78 is: 207,297,690.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,719,861.48 : 361,187,612.26 = 150,209,810.78 : x
  2. Step 2: Convert to fraction form
    261,719,861.48/361,187,612.26 = 150,209,810.78/x
  3. Step 3: Cross multiply
    261,719,861.48x = 361,187,612.26 × 150,209,810.78
  4. Step 4: Simplify right side
    261,719,861.48x = 54,253,922,893,654,608
  5. Step 5: Solve for x
    x = 54,253,922,893,654,608/261,719,861.48
  6. Step 6: Final answer
    x = 207,297,690.69

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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.