Home / 511,278,265.20-766,917,397.80-485,076,255.60

Finding the Fourth Proportional to 511,278,265.20, 766,917,397.80 and 485,076,255.60

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Solution

The fourth proportional to 511,278,265.20, 766,917,397.80 and 485,076,255.60 is: 727,614,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,278,265.20 : 766,917,397.80 = 485,076,255.60 : x
  2. Step 2: Convert to fraction form
    511,278,265.20/766,917,397.80 = 485,076,255.60/x
  3. Step 3: Cross multiply
    511,278,265.20x = 766,917,397.80 × 485,076,255.60
  4. Step 4: Simplify right side
    511,278,265.20x = 372,013,419,679,319,680
  5. Step 5: Solve for x
    x = 372,013,419,679,319,680/511,278,265.20
  6. Step 6: Final answer
    x = 727,614,383.40

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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.