Home / 18,240,382.28-27,345,120.42-7,997,479.40

Finding the Fourth Proportional to 18,240,382.28, 27,345,120.42 and 7,997,479.40

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Solution

The fourth proportional to 18,240,382.28, 27,345,120.42 and 7,997,479.40 is: 11,989,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240,382.28 : 27,345,120.42 = 7,997,479.40 : x
  2. Step 2: Convert to fraction form
    18,240,382.28/27,345,120.42 = 7,997,479.40/x
  3. Step 3: Cross multiply
    18,240,382.28x = 27,345,120.42 × 7,997,479.40
  4. Step 4: Simplify right side
    18,240,382.28x = 218,692,037,249,469.38
  5. Step 5: Solve for x
    x = 218,692,037,249,469.38/18,240,382.28
  6. Step 6: Final answer
    x = 11,989,443.75

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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.