Home / 15,530,421.60-21,432,191.76-8,654,668.56

Finding the Fourth Proportional to 15,530,421.60, 21,432,191.76 and 8,654,668.56

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Solution

The fourth proportional to 15,530,421.60, 21,432,191.76 and 8,654,668.56 is: 11,943,559.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530,421.60 : 21,432,191.76 = 8,654,668.56 : x
  2. Step 2: Convert to fraction form
    15,530,421.60/21,432,191.76 = 8,654,668.56/x
  3. Step 3: Cross multiply
    15,530,421.60x = 21,432,191.76 × 8,654,668.56
  4. Step 4: Simplify right side
    15,530,421.60x = 185,488,516,197,163.09
  5. Step 5: Solve for x
    x = 185,488,516,197,163.09/15,530,421.60
  6. Step 6: Final answer
    x = 11,943,559.61

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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.