Home / 20,535,600.30-28,330,232.67-12,382,308.78

Finding the Fourth Proportional to 20,535,600.30, 28,330,232.67 and 12,382,308.78

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Solution

The fourth proportional to 20,535,600.30, 28,330,232.67 and 12,382,308.78 is: 17,082,222.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,600.30 : 28,330,232.67 = 12,382,308.78 : x
  2. Step 2: Convert to fraction form
    20,535,600.30/28,330,232.67 = 12,382,308.78/x
  3. Step 3: Cross multiply
    20,535,600.30x = 28,330,232.67 × 12,382,308.78
  4. Step 4: Simplify right side
    20,535,600.30x = 350,793,688,729,183.88
  5. Step 5: Solve for x
    x = 350,793,688,729,183.88/20,535,600.30
  6. Step 6: Final answer
    x = 17,082,222.27

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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.