Home / 20,380,824.60-28,114,818.14-12,115,007.52

Finding the Fourth Proportional to 20,380,824.60, 28,114,818.14 and 12,115,007.52

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Solution

The fourth proportional to 20,380,824.60, 28,114,818.14 and 12,115,007.52 is: 16,712,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380,824.60 : 28,114,818.14 = 12,115,007.52 : x
  2. Step 2: Convert to fraction form
    20,380,824.60/28,114,818.14 = 12,115,007.52/x
  3. Step 3: Cross multiply
    20,380,824.60x = 28,114,818.14 × 12,115,007.52
  4. Step 4: Simplify right side
    20,380,824.60x = 340,611,233,189,532.44
  5. Step 5: Solve for x
    x = 340,611,233,189,532.44/20,380,824.60
  6. Step 6: Final answer
    x = 16,712,338.18

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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.