Home / 20,958,443.88-28,922,648.10-11,665,813.56

Finding the Fourth Proportional to 20,958,443.88, 28,922,648.10 and 11,665,813.56

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Solution

The fourth proportional to 20,958,443.88, 28,922,648.10 and 11,665,813.56 is: 16,098,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958,443.88 : 28,922,648.10 = 11,665,813.56 : x
  2. Step 2: Convert to fraction form
    20,958,443.88/28,922,648.10 = 11,665,813.56/x
  3. Step 3: Cross multiply
    20,958,443.88x = 28,922,648.10 × 11,665,813.56
  4. Step 4: Simplify right side
    20,958,443.88x = 337,406,220,396,088.25
  5. Step 5: Solve for x
    x = 337,406,220,396,088.25/20,958,443.88
  6. Step 6: Final answer
    x = 16,098,820.23

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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.