Home / 107,835,489.20-161,753,233.80-67,020,820.40

Finding the Fourth Proportional to 107,835,489.20, 161,753,233.80 and 67,020,820.40

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Solution

The fourth proportional to 107,835,489.20, 161,753,233.80 and 67,020,820.40 is: 100,531,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,835,489.20 : 161,753,233.80 = 67,020,820.40 : x
  2. Step 2: Convert to fraction form
    107,835,489.20/161,753,233.80 = 67,020,820.40/x
  3. Step 3: Cross multiply
    107,835,489.20x = 161,753,233.80 × 67,020,820.40
  4. Step 4: Simplify right side
    107,835,489.20x = 10,840,834,431,629,010
  5. Step 5: Solve for x
    x = 10,840,834,431,629,010/107,835,489.20
  6. Step 6: Final answer
    x = 100,531,230.60

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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.