Home / 20,586,311.60-28,408,561.80-11,884,190

Finding the Fourth Proportional to 20,586,311.60, 28,408,561.80 and 11,884,190

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Solution

The fourth proportional to 20,586,311.60, 28,408,561.80 and 11,884,190 is: 16,399,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586,311.60 : 28,408,561.80 = 11,884,190 : x
  2. Step 2: Convert to fraction form
    20,586,311.60/28,408,561.80 = 11,884,190/x
  3. Step 3: Cross multiply
    20,586,311.60x = 28,408,561.80 × 11,884,190
  4. Step 4: Simplify right side
    20,586,311.60x = 337,612,746,057,942
  5. Step 5: Solve for x
    x = 337,612,746,057,942/20,586,311.60
  6. Step 6: Final answer
    x = 16,399,865.73

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1.5x scale

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.