Home / 12,656,149.40-17,465,844.80-7,149,757.25

Finding the Fourth Proportional to 12,656,149.40, 17,465,844.80 and 7,149,757.25

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Solution

The fourth proportional to 12,656,149.40, 17,465,844.80 and 7,149,757.25 is: 9,866,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656,149.40 : 17,465,844.80 = 7,149,757.25 : x
  2. Step 2: Convert to fraction form
    12,656,149.40/17,465,844.80 = 7,149,757.25/x
  3. Step 3: Cross multiply
    12,656,149.40x = 17,465,844.80 × 7,149,757.25
  4. Step 4: Simplify right side
    12,656,149.40x = 124,876,550,450,426.03
  5. Step 5: Solve for x
    x = 124,876,550,450,426.03/12,656,149.40
  6. Step 6: Final answer
    x = 9,866,867.60

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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.