Home / 7,129,342.40-10,694,013.60-2,081,163.20

Finding the Fourth Proportional to 7,129,342.40, 10,694,013.60 and 2,081,163.20

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Solution

The fourth proportional to 7,129,342.40, 10,694,013.60 and 2,081,163.20 is: 3,121,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,342.40 : 10,694,013.60 = 2,081,163.20 : x
  2. Step 2: Convert to fraction form
    7,129,342.40/10,694,013.60 = 2,081,163.20/x
  3. Step 3: Cross multiply
    7,129,342.40x = 10,694,013.60 × 2,081,163.20
  4. Step 4: Simplify right side
    7,129,342.40x = 22,255,987,564,619.52
  5. Step 5: Solve for x
    x = 22,255,987,564,619.52/7,129,342.40
  6. Step 6: Final answer
    x = 3,121,744.80

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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.