Home / 218,275,051.20-327,458,066.40-72,753,820.80

Finding the Fourth Proportional to 218,275,051.20, 327,458,066.40 and 72,753,820.80

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Solution

The fourth proportional to 218,275,051.20, 327,458,066.40 and 72,753,820.80 is: 109,145,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,275,051.20 : 327,458,066.40 = 72,753,820.80 : x
  2. Step 2: Convert to fraction form
    218,275,051.20/327,458,066.40 = 72,753,820.80/x
  3. Step 3: Cross multiply
    218,275,051.20x = 327,458,066.40 × 72,753,820.80
  4. Step 4: Simplify right side
    218,275,051.20x = 23,823,825,482,380,100
  5. Step 5: Solve for x
    x = 23,823,825,482,380,100/218,275,051.20
  6. Step 6: Final answer
    x = 109,145,893.46

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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.