Home / 7,128,043.20-10,682,733.60-2,864,721.60

Finding the Fourth Proportional to 7,128,043.20, 10,682,733.60 and 2,864,721.60

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Solution

The fourth proportional to 7,128,043.20, 10,682,733.60 and 2,864,721.60 is: 4,293,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,043.20 : 10,682,733.60 = 2,864,721.60 : x
  2. Step 2: Convert to fraction form
    7,128,043.20/10,682,733.60 = 2,864,721.60/x
  3. Step 3: Cross multiply
    7,128,043.20x = 10,682,733.60 × 2,864,721.60
  4. Step 4: Simplify right side
    7,128,043.20x = 30,603,057,690,965.76
  5. Step 5: Solve for x
    x = 30,603,057,690,965.76/7,128,043.20
  6. Step 6: Final answer
    x = 4,293,332.24

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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.