Home / 12,477,008.30-18,715,512.45-7,627,117.10

Finding the Fourth Proportional to 12,477,008.30, 18,715,512.45 and 7,627,117.10

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Solution

The fourth proportional to 12,477,008.30, 18,715,512.45 and 7,627,117.10 is: 11,440,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,008.30 : 18,715,512.45 = 7,627,117.10 : x
  2. Step 2: Convert to fraction form
    12,477,008.30/18,715,512.45 = 7,627,117.10/x
  3. Step 3: Cross multiply
    12,477,008.30x = 18,715,512.45 × 7,627,117.10
  4. Step 4: Simplify right side
    12,477,008.30x = 142,745,405,042,657.88
  5. Step 5: Solve for x
    x = 142,745,405,042,657.88/12,477,008.30
  6. Step 6: Final answer
    x = 11,440,675.65

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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.