Home / 21,707,998.60-32,561,997.90-13,190,945.80

Finding the Fourth Proportional to 21,707,998.60, 32,561,997.90 and 13,190,945.80

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Solution

The fourth proportional to 21,707,998.60, 32,561,997.90 and 13,190,945.80 is: 19,786,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707,998.60 : 32,561,997.90 = 13,190,945.80 : x
  2. Step 2: Convert to fraction form
    21,707,998.60/32,561,997.90 = 13,190,945.80/x
  3. Step 3: Cross multiply
    21,707,998.60x = 32,561,997.90 × 13,190,945.80
  4. Step 4: Simplify right side
    21,707,998.60x = 429,523,549,438,613.81
  5. Step 5: Solve for x
    x = 429,523,549,438,613.81/21,707,998.60
  6. Step 6: Final answer
    x = 19,786,418.70

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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.