Home / 13,786,400.30-20,679,600.45-3,689,021.30

Finding the Fourth Proportional to 13,786,400.30, 20,679,600.45 and 3,689,021.30

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Solution

The fourth proportional to 13,786,400.30, 20,679,600.45 and 3,689,021.30 is: 5,533,531.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786,400.30 : 20,679,600.45 = 3,689,021.30 : x
  2. Step 2: Convert to fraction form
    13,786,400.30/20,679,600.45 = 3,689,021.30/x
  3. Step 3: Cross multiply
    13,786,400.30x = 20,679,600.45 × 3,689,021.30
  4. Step 4: Simplify right side
    13,786,400.30x = 76,287,486,535,539.58
  5. Step 5: Solve for x
    x = 76,287,486,535,539.58/13,786,400.30
  6. Step 6: Final answer
    x = 5,533,531.95

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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.