Home / 28,065,900.09-38,730,942.13-15,188,844.09

Finding the Fourth Proportional to 28,065,900.09, 38,730,942.13 and 15,188,844.09

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Solution

The fourth proportional to 28,065,900.09, 38,730,942.13 and 15,188,844.09 is: 20,960,604.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065,900.09 : 38,730,942.13 = 15,188,844.09 : x
  2. Step 2: Convert to fraction form
    28,065,900.09/38,730,942.13 = 15,188,844.09/x
  3. Step 3: Cross multiply
    28,065,900.09x = 38,730,942.13 × 15,188,844.09
  4. Step 4: Simplify right side
    28,065,900.09x = 588,278,241,607,130.62
  5. Step 5: Solve for x
    x = 588,278,241,607,130.62/28,065,900.09
  6. Step 6: Final answer
    x = 20,960,604.85

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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.