Home / 3,987,711.70-5,981,567.55-3,679,782.10

Finding the Fourth Proportional to 3,987,711.70, 5,981,567.55 and 3,679,782.10

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Solution

The fourth proportional to 3,987,711.70, 5,981,567.55 and 3,679,782.10 is: 5,519,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,711.70 : 5,981,567.55 = 3,679,782.10 : x
  2. Step 2: Convert to fraction form
    3,987,711.70/5,981,567.55 = 3,679,782.10/x
  3. Step 3: Cross multiply
    3,987,711.70x = 5,981,567.55 × 3,679,782.10
  4. Step 4: Simplify right side
    3,987,711.70x = 22,010,865,200,430.86
  5. Step 5: Solve for x
    x = 22,010,865,200,430.86/3,987,711.70
  6. Step 6: Final answer
    x = 5,519,673.15

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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.