Home / 2,155,207.80-3,230,738.10-1,675,169.40

Finding the Fourth Proportional to 2,155,207.80, 3,230,738.10 and 1,675,169.40

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Solution

The fourth proportional to 2,155,207.80, 3,230,738.10 and 1,675,169.40 is: 2,511,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,207.80 : 3,230,738.10 = 1,675,169.40 : x
  2. Step 2: Convert to fraction form
    2,155,207.80/3,230,738.10 = 1,675,169.40/x
  3. Step 3: Cross multiply
    2,155,207.80x = 3,230,738.10 × 1,675,169.40
  4. Step 4: Simplify right side
    2,155,207.80x = 5,412,033,604,534.14
  5. Step 5: Solve for x
    x = 5,412,033,604,534.14/2,155,207.80
  6. Step 6: Final answer
    x = 2,511,142.36

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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.