Home / 13,288,781.90-19,932,136.05-5,200,186.70

Finding the Fourth Proportional to 13,288,781.90, 19,932,136.05 and 5,200,186.70

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Solution

The fourth proportional to 13,288,781.90, 19,932,136.05 and 5,200,186.70 is: 7,799,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288,781.90 : 19,932,136.05 = 5,200,186.70 : x
  2. Step 2: Convert to fraction form
    13,288,781.90/19,932,136.05 = 5,200,186.70/x
  3. Step 3: Cross multiply
    13,288,781.90x = 19,932,136.05 × 5,200,186.70
  4. Step 4: Simplify right side
    13,288,781.90x = 103,650,828,789,800.55
  5. Step 5: Solve for x
    x = 103,650,828,789,800.55/13,288,781.90
  6. Step 6: Final answer
    x = 7,799,874.33

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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.