Home / 12,129,272.10-18,193,908.15-4,042,511.55

Finding the Fourth Proportional to 12,129,272.10, 18,193,908.15 and 4,042,511.55

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Solution

The fourth proportional to 12,129,272.10, 18,193,908.15 and 4,042,511.55 is: 6,063,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,272.10 : 18,193,908.15 = 4,042,511.55 : x
  2. Step 2: Convert to fraction form
    12,129,272.10/18,193,908.15 = 4,042,511.55/x
  3. Step 3: Cross multiply
    12,129,272.10x = 18,193,908.15 × 4,042,511.55
  4. Step 4: Simplify right side
    12,129,272.10x = 73,549,083,836,014.12
  5. Step 5: Solve for x
    x = 73,549,083,836,014.12/12,129,272.10
  6. Step 6: Final answer
    x = 6,063,767.33

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Double scale
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Similar ratio
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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.