Home / 13,608,042.30-20,412,063.45-7,860,606.30

Finding the Fourth Proportional to 13,608,042.30, 20,412,063.45 and 7,860,606.30

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Solution

The fourth proportional to 13,608,042.30, 20,412,063.45 and 7,860,606.30 is: 11,790,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,042.30 : 20,412,063.45 = 7,860,606.30 : x
  2. Step 2: Convert to fraction form
    13,608,042.30/20,412,063.45 = 7,860,606.30/x
  3. Step 3: Cross multiply
    13,608,042.30x = 20,412,063.45 × 7,860,606.30
  4. Step 4: Simplify right side
    13,608,042.30x = 160,451,194,551,069.72
  5. Step 5: Solve for x
    x = 160,451,194,551,069.72/13,608,042.30
  6. Step 6: Final answer
    x = 11,790,909.45

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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.