Home / 8,427,987.11-12,643,575.30-2,672,170.46

Finding the Fourth Proportional to 8,427,987.11, 12,643,575.30 and 2,672,170.46

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Solution

The fourth proportional to 8,427,987.11, 12,643,575.30 and 2,672,170.46 is: 4,008,761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427,987.11 : 12,643,575.30 = 2,672,170.46 : x
  2. Step 2: Convert to fraction form
    8,427,987.11/12,643,575.30 = 2,672,170.46/x
  3. Step 3: Cross multiply
    8,427,987.11x = 12,643,575.30 × 2,672,170.46
  4. Step 4: Simplify right side
    8,427,987.11x = 33,785,788,402,124.36
  5. Step 5: Solve for x
    x = 33,785,788,402,124.36/8,427,987.11
  6. Step 6: Final answer
    x = 4,008,761.28

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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.