Home / 20,810,877.60-31,214,761.20-8,677,207.20

Finding the Fourth Proportional to 20,810,877.60, 31,214,761.20 and 8,677,207.20

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Solution

The fourth proportional to 20,810,877.60, 31,214,761.20 and 8,677,207.20 is: 13,015,162.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810,877.60 : 31,214,761.20 = 8,677,207.20 : x
  2. Step 2: Convert to fraction form
    20,810,877.60/31,214,761.20 = 8,677,207.20/x
  3. Step 3: Cross multiply
    20,810,877.60x = 31,214,761.20 × 8,677,207.20
  4. Step 4: Simplify right side
    20,810,877.60x = 270,856,950,630,920.62
  5. Step 5: Solve for x
    x = 270,856,950,630,920.62/20,810,877.60
  6. Step 6: Final answer
    x = 13,015,162.35

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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.