Home / 12,982,647.16-17,910,020.46-8,400,449.08

Finding the Fourth Proportional to 12,982,647.16, 17,910,020.46 and 8,400,449.08

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Solution

The fourth proportional to 12,982,647.16, 17,910,020.46 and 8,400,449.08 is: 11,588,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,647.16 : 17,910,020.46 = 8,400,449.08 : x
  2. Step 2: Convert to fraction form
    12,982,647.16/17,910,020.46 = 8,400,449.08/x
  3. Step 3: Cross multiply
    12,982,647.16x = 17,910,020.46 × 8,400,449.08
  4. Step 4: Simplify right side
    12,982,647.16x = 150,452,214,895,988.19
  5. Step 5: Solve for x
    x = 150,452,214,895,988.19/12,982,647.16
  6. Step 6: Final answer
    x = 11,588,716.31

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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.