Home / 12,110,145.48-18,165,218.22-8,312,113.80

Finding the Fourth Proportional to 12,110,145.48, 18,165,218.22 and 8,312,113.80

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Solution

The fourth proportional to 12,110,145.48, 18,165,218.22 and 8,312,113.80 is: 12,468,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110,145.48 : 18,165,218.22 = 8,312,113.80 : x
  2. Step 2: Convert to fraction form
    12,110,145.48/18,165,218.22 = 8,312,113.80/x
  3. Step 3: Cross multiply
    12,110,145.48x = 18,165,218.22 × 8,312,113.80
  4. Step 4: Simplify right side
    12,110,145.48x = 150,991,361,046,473.44
  5. Step 5: Solve for x
    x = 150,991,361,046,473.44/12,110,145.48
  6. Step 6: Final answer
    x = 12,468,170.70

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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.