Home / 8,256,139.20-12,356,215.20-7,248,369.60

Finding the Fourth Proportional to 8,256,139.20, 12,356,215.20 and 7,248,369.60

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Solution

The fourth proportional to 8,256,139.20, 12,356,215.20 and 7,248,369.60 is: 10,847,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256,139.20 : 12,356,215.20 = 7,248,369.60 : x
  2. Step 2: Convert to fraction form
    8,256,139.20/12,356,215.20 = 7,248,369.60/x
  3. Step 3: Cross multiply
    8,256,139.20x = 12,356,215.20 × 7,248,369.60
  4. Step 4: Simplify right side
    8,256,139.20x = 89,562,414,626,737.91
  5. Step 5: Solve for x
    x = 89,562,414,626,737.91/8,256,139.20
  6. Step 6: Final answer
    x = 10,847,977.78

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1.5x scale

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.