Home / 12,128,015.40-18,192,023.10-4,944,704.55

Finding the Fourth Proportional to 12,128,015.40, 18,192,023.10 and 4,944,704.55

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Solution

The fourth proportional to 12,128,015.40, 18,192,023.10 and 4,944,704.55 is: 7,417,056.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,015.40 : 18,192,023.10 = 4,944,704.55 : x
  2. Step 2: Convert to fraction form
    12,128,015.40/18,192,023.10 = 4,944,704.55/x
  3. Step 3: Cross multiply
    12,128,015.40x = 18,192,023.10 × 4,944,704.55
  4. Step 4: Simplify right side
    12,128,015.40x = 89,954,179,396,275.11
  5. Step 5: Solve for x
    x = 89,954,179,396,275.11/12,128,015.40
  6. Step 6: Final answer
    x = 7,417,056.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.