Home / 12,884,880.75-17,780,682.20-7,083,620.43

Finding the Fourth Proportional to 12,884,880.75, 17,780,682.20 and 7,083,620.43

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Solution

The fourth proportional to 12,884,880.75, 17,780,682.20 and 7,083,620.43 is: 9,775,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884,880.75 : 17,780,682.20 = 7,083,620.43 : x
  2. Step 2: Convert to fraction form
    12,884,880.75/17,780,682.20 = 7,083,620.43/x
  3. Step 3: Cross multiply
    12,884,880.75x = 17,780,682.20 × 7,083,620.43
  4. Step 4: Simplify right side
    12,884,880.75x = 125,951,603,655,839.23
  5. Step 5: Solve for x
    x = 125,951,603,655,839.23/12,884,880.75
  6. Step 6: Final answer
    x = 9,775,147.02

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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.