Home / 5,785,380.81-8,678,145.03-3,987,781.63

Finding the Fourth Proportional to 5,785,380.81, 8,678,145.03 and 3,987,781.63

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Solution

The fourth proportional to 5,785,380.81, 8,678,145.03 and 3,987,781.63 is: 5,981,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785,380.81 : 8,678,145.03 = 3,987,781.63 : x
  2. Step 2: Convert to fraction form
    5,785,380.81/8,678,145.03 = 3,987,781.63/x
  3. Step 3: Cross multiply
    5,785,380.81x = 8,678,145.03 × 3,987,781.63
  4. Step 4: Simplify right side
    5,785,380.81x = 34,606,547,311,414.43
  5. Step 5: Solve for x
    x = 34,606,547,311,414.43/5,785,380.81
  6. Step 6: Final answer
    x = 5,981,723.32

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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.