Home / 12,225,672.30-18,338,508.45-8,638,445.55

Finding the Fourth Proportional to 12,225,672.30, 18,338,508.45 and 8,638,445.55

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Solution

The fourth proportional to 12,225,672.30, 18,338,508.45 and 8,638,445.55 is: 12,957,668.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225,672.30 : 18,338,508.45 = 8,638,445.55 : x
  2. Step 2: Convert to fraction form
    12,225,672.30/18,338,508.45 = 8,638,445.55/x
  3. Step 3: Cross multiply
    12,225,672.30x = 18,338,508.45 × 8,638,445.55
  4. Step 4: Simplify right side
    12,225,672.30x = 158,416,206,713,539.91
  5. Step 5: Solve for x
    x = 158,416,206,713,539.91/12,225,672.30
  6. Step 6: Final answer
    x = 12,957,668.33

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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.