Home / 72,361,998.12-108,547,134.92-20,542,547.61

Finding the Fourth Proportional to 72,361,998.12, 108,547,134.92 and 20,542,547.61

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Solution

The fourth proportional to 72,361,998.12, 108,547,134.92 and 20,542,547.61 is: 30,814,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,361,998.12 : 108,547,134.92 = 20,542,547.61 : x
  2. Step 2: Convert to fraction form
    72,361,998.12/108,547,134.92 = 20,542,547.61/x
  3. Step 3: Cross multiply
    72,361,998.12x = 108,547,134.92 × 20,542,547.61
  4. Step 4: Simplify right side
    72,361,998.12x = 2,229,834,686,920,480.75
  5. Step 5: Solve for x
    x = 2,229,834,686,920,480.75/72,361,998.12
  6. Step 6: Final answer
    x = 30,814,996.06

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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.