Home / 13,061,917.14-18,025,660.72-7,181,799.90

Finding the Fourth Proportional to 13,061,917.14, 18,025,660.72 and 7,181,799.90

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Solution

The fourth proportional to 13,061,917.14, 18,025,660.72 and 7,181,799.90 is: 9,911,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,061,917.14 : 18,025,660.72 = 7,181,799.90 : x
  2. Step 2: Convert to fraction form
    13,061,917.14/18,025,660.72 = 7,181,799.90/x
  3. Step 3: Cross multiply
    13,061,917.14x = 18,025,660.72 × 7,181,799.90
  4. Step 4: Simplify right side
    13,061,917.14x = 129,456,688,356,329.92
  5. Step 5: Solve for x
    x = 129,456,688,356,329.92/13,061,917.14
  6. Step 6: Final answer
    x = 9,911,002.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.