Home / 3,150,174.80-4,345,429.69-1,988,208.13

Finding the Fourth Proportional to 3,150,174.80, 4,345,429.69 and 1,988,208.13

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Solution

The fourth proportional to 3,150,174.80, 4,345,429.69 and 1,988,208.13 is: 2,742,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150,174.80 : 4,345,429.69 = 1,988,208.13 : x
  2. Step 2: Convert to fraction form
    3,150,174.80/4,345,429.69 = 1,988,208.13/x
  3. Step 3: Cross multiply
    3,150,174.80x = 4,345,429.69 × 1,988,208.13
  4. Step 4: Simplify right side
    3,150,174.80x = 8,639,618,622,167.29
  5. Step 5: Solve for x
    x = 8,639,618,622,167.29/3,150,174.80
  6. Step 6: Final answer
    x = 2,742,583.88

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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.