Home / 28,040,461.20-42,060,691.80-12,084,109.20

Finding the Fourth Proportional to 28,040,461.20, 42,060,691.80 and 12,084,109.20

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Solution

The fourth proportional to 28,040,461.20, 42,060,691.80 and 12,084,109.20 is: 18,126,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,461.20 : 42,060,691.80 = 12,084,109.20 : x
  2. Step 2: Convert to fraction form
    28,040,461.20/42,060,691.80 = 12,084,109.20/x
  3. Step 3: Cross multiply
    28,040,461.20x = 42,060,691.80 × 12,084,109.20
  4. Step 4: Simplify right side
    28,040,461.20x = 508,265,992,738,744.50
  5. Step 5: Solve for x
    x = 508,265,992,738,744.50/28,040,461.20
  6. Step 6: Final answer
    x = 18,126,163.80

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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.