Home / 20,821,994.32-28,737,595.61-11,881,122.27

Finding the Fourth Proportional to 20,821,994.32, 28,737,595.61 and 11,881,122.27

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Solution

The fourth proportional to 20,821,994.32, 28,737,595.61 and 11,881,122.27 is: 16,397,799.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821,994.32 : 28,737,595.61 = 11,881,122.27 : x
  2. Step 2: Convert to fraction form
    20,821,994.32/28,737,595.61 = 11,881,122.27/x
  3. Step 3: Cross multiply
    20,821,994.32x = 28,737,595.61 × 11,881,122.27
  4. Step 4: Simplify right side
    20,821,994.32x = 341,434,887,188,225.19
  5. Step 5: Solve for x
    x = 341,434,887,188,225.19/20,821,994.32
  6. Step 6: Final answer
    x = 16,397,799.46

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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.