Home / 20,695,419.96-28,560,327.08-11,876,484.62

Finding the Fourth Proportional to 20,695,419.96, 28,560,327.08 and 11,876,484.62

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Solution

The fourth proportional to 20,695,419.96, 28,560,327.08 and 11,876,484.62 is: 16,389,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695,419.96 : 28,560,327.08 = 11,876,484.62 : x
  2. Step 2: Convert to fraction form
    20,695,419.96/28,560,327.08 = 11,876,484.62/x
  3. Step 3: Cross multiply
    20,695,419.96x = 28,560,327.08 × 11,876,484.62
  4. Step 4: Simplify right side
    20,695,419.96x = 339,196,285,307,789.44
  5. Step 5: Solve for x
    x = 339,196,285,307,789.44/20,695,419.96
  6. Step 6: Final answer
    x = 16,389,920.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.