Home / 8,785,612.80-13,164,422.40-6,518,131.20

Finding the Fourth Proportional to 8,785,612.80, 13,164,422.40 and 6,518,131.20

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Solution

The fourth proportional to 8,785,612.80, 13,164,422.40 and 6,518,131.20 is: 9,766,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785,612.80 : 13,164,422.40 = 6,518,131.20 : x
  2. Step 2: Convert to fraction form
    8,785,612.80/13,164,422.40 = 6,518,131.20/x
  3. Step 3: Cross multiply
    8,785,612.80x = 13,164,422.40 × 6,518,131.20
  4. Step 4: Simplify right side
    8,785,612.80x = 85,807,432,375,418.89
  5. Step 5: Solve for x
    x = 85,807,432,375,418.89/8,785,612.80
  6. Step 6: Final answer
    x = 9,766,812.44

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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.