Home / 21,659,999.20-32,489,998.80-8,889,668.80

Finding the Fourth Proportional to 21,659,999.20, 32,489,998.80 and 8,889,668.80

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Solution

The fourth proportional to 21,659,999.20, 32,489,998.80 and 8,889,668.80 is: 13,334,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,659,999.20 : 32,489,998.80 = 8,889,668.80 : x
  2. Step 2: Convert to fraction form
    21,659,999.20/32,489,998.80 = 8,889,668.80/x
  3. Step 3: Cross multiply
    21,659,999.20x = 32,489,998.80 × 8,889,668.80
  4. Step 4: Simplify right side
    21,659,999.20x = 288,825,328,644,397.50
  5. Step 5: Solve for x
    x = 288,825,328,644,397.50/21,659,999.20
  6. Step 6: Final answer
    x = 13,334,503.20

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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.