Home / 12,287,999.70-18,431,999.55-5,556,633.30

Finding the Fourth Proportional to 12,287,999.70, 18,431,999.55 and 5,556,633.30

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Solution

The fourth proportional to 12,287,999.70, 18,431,999.55 and 5,556,633.30 is: 8,334,949.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287,999.70 : 18,431,999.55 = 5,556,633.30 : x
  2. Step 2: Convert to fraction form
    12,287,999.70/18,431,999.55 = 5,556,633.30/x
  3. Step 3: Cross multiply
    12,287,999.70x = 18,431,999.55 × 5,556,633.30
  4. Step 4: Simplify right side
    12,287,999.70x = 102,419,862,485,115.02
  5. Step 5: Solve for x
    x = 102,419,862,485,115.02/12,287,999.70
  6. Step 6: Final answer
    x = 8,334,949.95

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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.