Home / 20,692,557.45-28,557,956.67-11,401,061.61

Finding the Fourth Proportional to 20,692,557.45, 28,557,956.67 and 11,401,061.61

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Solution

The fourth proportional to 20,692,557.45, 28,557,956.67 and 11,401,061.61 is: 15,734,692.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692,557.45 : 28,557,956.67 = 11,401,061.61 : x
  2. Step 2: Convert to fraction form
    20,692,557.45/28,557,956.67 = 11,401,061.61/x
  3. Step 3: Cross multiply
    20,692,557.45x = 28,557,956.67 × 11,401,061.61
  4. Step 4: Simplify right side
    20,692,557.45x = 325,591,023,450,380.44
  5. Step 5: Solve for x
    x = 325,591,023,450,380.44/20,692,557.45
  6. Step 6: Final answer
    x = 15,734,692.26

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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.