Home / 12,840,982.08-17,720,700.48-7,335,085.44

Finding the Fourth Proportional to 12,840,982.08, 17,720,700.48 and 7,335,085.44

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Solution

The fourth proportional to 12,840,982.08, 17,720,700.48 and 7,335,085.44 is: 10,122,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840,982.08 : 17,720,700.48 = 7,335,085.44 : x
  2. Step 2: Convert to fraction form
    12,840,982.08/17,720,700.48 = 7,335,085.44/x
  3. Step 3: Cross multiply
    12,840,982.08x = 17,720,700.48 × 7,335,085.44
  4. Step 4: Simplify right side
    12,840,982.08x = 129,982,852,077,449.02
  5. Step 5: Solve for x
    x = 129,982,852,077,449.02/12,840,982.08
  6. Step 6: Final answer
    x = 10,122,500.85

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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.