Home / 12,788,099.20-17,647,370.40-6,986,756.08

Finding the Fourth Proportional to 12,788,099.20, 17,647,370.40 and 6,986,756.08

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Solution

The fourth proportional to 12,788,099.20, 17,647,370.40 and 6,986,756.08 is: 9,641,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,099.20 : 17,647,370.40 = 6,986,756.08 : x
  2. Step 2: Convert to fraction form
    12,788,099.20/17,647,370.40 = 6,986,756.08/x
  3. Step 3: Cross multiply
    12,788,099.20x = 17,647,370.40 × 6,986,756.08
  4. Step 4: Simplify right side
    12,788,099.20x = 123,297,872,438,212.02
  5. Step 5: Solve for x
    x = 123,297,872,438,212.02/12,788,099.20
  6. Step 6: Final answer
    x = 9,641,610.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.