Home / 21,659,998.20-32,489,997.30-8,889,667.80

Finding the Fourth Proportional to 21,659,998.20, 32,489,997.30 and 8,889,667.80

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Solution

The fourth proportional to 21,659,998.20, 32,489,997.30 and 8,889,667.80 is: 13,334,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659,998.20 : 32,489,997.30 = 8,889,667.80 : x
  2. Step 2: Convert to fraction form
    21,659,998.20/32,489,997.30 = 8,889,667.80/x
  3. Step 3: Cross multiply
    21,659,998.20x = 32,489,997.30 × 8,889,667.80
  4. Step 4: Simplify right side
    21,659,998.20x = 288,825,282,819,897
  5. Step 5: Solve for x
    x = 288,825,282,819,897/21,659,998.20
  6. Step 6: Final answer
    x = 13,334,501.70

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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.