Home / 15,149,900.92-20,906,539.86-8,274,410.68

Finding the Fourth Proportional to 15,149,900.92, 20,906,539.86 and 8,274,410.68

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Solution

The fourth proportional to 15,149,900.92, 20,906,539.86 and 8,274,410.68 is: 11,418,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149,900.92 : 20,906,539.86 = 8,274,410.68 : x
  2. Step 2: Convert to fraction form
    15,149,900.92/20,906,539.86 = 8,274,410.68/x
  3. Step 3: Cross multiply
    15,149,900.92x = 20,906,539.86 × 8,274,410.68
  4. Step 4: Simplify right side
    15,149,900.92x = 172,989,296,699,429.69
  5. Step 5: Solve for x
    x = 172,989,296,699,429.69/15,149,900.92
  6. Step 6: Final answer
    x = 11,418,510.10

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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.