Home / 10,752,820.40-16,129,230.60-5,378,049.20

Finding the Fourth Proportional to 10,752,820.40, 16,129,230.60 and 5,378,049.20

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Solution

The fourth proportional to 10,752,820.40, 16,129,230.60 and 5,378,049.20 is: 8,067,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,752,820.40 : 16,129,230.60 = 5,378,049.20 : x
  2. Step 2: Convert to fraction form
    10,752,820.40/16,129,230.60 = 5,378,049.20/x
  3. Step 3: Cross multiply
    10,752,820.40x = 16,129,230.60 × 5,378,049.20
  4. Step 4: Simplify right side
    10,752,820.40x = 86,743,795,724,945.52
  5. Step 5: Solve for x
    x = 86,743,795,724,945.52/10,752,820.40
  6. Step 6: Final answer
    x = 8,067,073.80

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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.