Home / 72,140,999.20-108,282,357.60-35,790,434.80

Finding the Fourth Proportional to 72,140,999.20, 108,282,357.60 and 35,790,434.80

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Solution

The fourth proportional to 72,140,999.20, 108,282,357.60 and 35,790,434.80 is: 53,720,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,140,999.20 : 108,282,357.60 = 35,790,434.80 : x
  2. Step 2: Convert to fraction form
    72,140,999.20/108,282,357.60 = 35,790,434.80/x
  3. Step 3: Cross multiply
    72,140,999.20x = 108,282,357.60 × 35,790,434.80
  4. Step 4: Simplify right side
    72,140,999.20x = 3,875,472,659,673,084
  5. Step 5: Solve for x
    x = 3,875,472,659,673,084/72,140,999.20
  6. Step 6: Final answer
    x = 53,720,806.51

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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.