Home / 12,025,037.20-18,037,555.80-9,155,255.80

Finding the Fourth Proportional to 12,025,037.20, 18,037,555.80 and 9,155,255.80

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Solution

The fourth proportional to 12,025,037.20, 18,037,555.80 and 9,155,255.80 is: 13,732,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025,037.20 : 18,037,555.80 = 9,155,255.80 : x
  2. Step 2: Convert to fraction form
    12,025,037.20/18,037,555.80 = 9,155,255.80/x
  3. Step 3: Cross multiply
    12,025,037.20x = 18,037,555.80 × 9,155,255.80
  4. Step 4: Simplify right side
    12,025,037.20x = 165,138,437,355,773.66
  5. Step 5: Solve for x
    x = 165,138,437,355,773.66/12,025,037.20
  6. Step 6: Final answer
    x = 13,732,883.70

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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.