Home / 20,367,150.48-28,106,701.20-11,074,711.92

Finding the Fourth Proportional to 20,367,150.48, 28,106,701.20 and 11,074,711.92

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Solution

The fourth proportional to 20,367,150.48, 28,106,701.20 and 11,074,711.92 is: 15,283,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367,150.48 : 28,106,701.20 = 11,074,711.92 : x
  2. Step 2: Convert to fraction form
    20,367,150.48/28,106,701.20 = 11,074,711.92/x
  3. Step 3: Cross multiply
    20,367,150.48x = 28,106,701.20 × 11,074,711.92
  4. Step 4: Simplify right side
    20,367,150.48x = 311,273,618,811,518.31
  5. Step 5: Solve for x
    x = 311,273,618,811,518.31/20,367,150.48
  6. Step 6: Final answer
    x = 15,283,120.69

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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.