Home / 72,073,364.22-108,128,474.37-20,955,382.83

Finding the Fourth Proportional to 72,073,364.22, 108,128,474.37 and 20,955,382.83

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Solution

The fourth proportional to 72,073,364.22, 108,128,474.37 and 20,955,382.83 is: 31,438,432.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,073,364.22 : 108,128,474.37 = 20,955,382.83 : x
  2. Step 2: Convert to fraction form
    72,073,364.22/108,128,474.37 = 20,955,382.83/x
  3. Step 3: Cross multiply
    72,073,364.22x = 108,128,474.37 × 20,955,382.83
  4. Step 4: Simplify right side
    72,073,364.22x = 2,265,873,575,247,193
  5. Step 5: Solve for x
    x = 2,265,873,575,247,193/72,073,364.22
  6. Step 6: Final answer
    x = 31,438,432.21

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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.