Home / 39,960,861.91-55,145,988.90-21,626,147.41

Finding the Fourth Proportional to 39,960,861.91, 55,145,988.90 and 21,626,147.41

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Solution

The fourth proportional to 39,960,861.91, 55,145,988.90 and 21,626,147.41 is: 29,844,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,861.91 : 55,145,988.90 = 21,626,147.41 : x
  2. Step 2: Convert to fraction form
    39,960,861.91/55,145,988.90 = 21,626,147.41/x
  3. Step 3: Cross multiply
    39,960,861.91x = 55,145,988.90 × 21,626,147.41
  4. Step 4: Simplify right side
    39,960,861.91x = 1,192,595,284,883,758.75
  5. Step 5: Solve for x
    x = 1,192,595,284,883,758.75/39,960,861.91
  6. Step 6: Final answer
    x = 29,844,083.13

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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.