Home / 20,643,675.60-28,489,093.17-11,352,007.45

Finding the Fourth Proportional to 20,643,675.60, 28,489,093.17 and 11,352,007.45

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Solution

The fourth proportional to 20,643,675.60, 28,489,093.17 and 11,352,007.45 is: 15,666,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643,675.60 : 28,489,093.17 = 11,352,007.45 : x
  2. Step 2: Convert to fraction form
    20,643,675.60/28,489,093.17 = 11,352,007.45/x
  3. Step 3: Cross multiply
    20,643,675.60x = 28,489,093.17 × 11,352,007.45
  4. Step 4: Simplify right side
    20,643,675.60x = 323,408,397,838,361.38
  5. Step 5: Solve for x
    x = 323,408,397,838,361.38/20,643,675.60
  6. Step 6: Final answer
    x = 15,666,221.66

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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.