Home / 511,278,412.20-766,917,618.30-485,076,402.60

Finding the Fourth Proportional to 511,278,412.20, 766,917,618.30 and 485,076,402.60

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Solution

The fourth proportional to 511,278,412.20, 766,917,618.30 and 485,076,402.60 is: 727,614,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,278,412.20 : 766,917,618.30 = 485,076,402.60 : x
  2. Step 2: Convert to fraction form
    511,278,412.20/766,917,618.30 = 485,076,402.60/x
  3. Step 3: Cross multiply
    511,278,412.20x = 766,917,618.30 × 485,076,402.60
  4. Step 4: Simplify right side
    511,278,412.20x = 372,013,639,375,523,904
  5. Step 5: Solve for x
    x = 372,013,639,375,523,904/511,278,412.20
  6. Step 6: Final answer
    x = 727,614,603.90

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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.