Home / 8,780,978.32-13,171,393.55-6,863,502.38

Finding the Fourth Proportional to 8,780,978.32, 13,171,393.55 and 6,863,502.38

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Solution

The fourth proportional to 8,780,978.32, 13,171,393.55 and 6,863,502.38 is: 10,295,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780,978.32 : 13,171,393.55 = 6,863,502.38 : x
  2. Step 2: Convert to fraction form
    8,780,978.32/13,171,393.55 = 6,863,502.38/x
  3. Step 3: Cross multiply
    8,780,978.32x = 13,171,393.55 × 6,863,502.38
  4. Step 4: Simplify right side
    8,780,978.32x = 90,401,890,929,643.44
  5. Step 5: Solve for x
    x = 90,401,890,929,643.44/8,780,978.32
  6. Step 6: Final answer
    x = 10,295,195.78

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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.