Home / 12,437,091.20-18,613,500.60-7,647,813.92

Finding the Fourth Proportional to 12,437,091.20, 18,613,500.60 and 7,647,813.92

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Solution

The fourth proportional to 12,437,091.20, 18,613,500.60 and 7,647,813.92 is: 11,445,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437,091.20 : 18,613,500.60 = 7,647,813.92 : x
  2. Step 2: Convert to fraction form
    12,437,091.20/18,613,500.60 = 7,647,813.92/x
  3. Step 3: Cross multiply
    12,437,091.20x = 18,613,500.60 × 7,647,813.92
  4. Step 4: Simplify right side
    12,437,091.20x = 142,352,588,988,608.38
  5. Step 5: Solve for x
    x = 142,352,588,988,608.38/12,437,091.20
  6. Step 6: Final answer
    x = 11,445,810.50

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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.