Home / 7,187,436.57-9,919,532.24-4,090,712.88

Finding the Fourth Proportional to 7,187,436.57, 9,919,532.24 and 4,090,712.88

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Solution

The fourth proportional to 7,187,436.57, 9,919,532.24 and 4,090,712.88 is: 5,645,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187,436.57 : 9,919,532.24 = 4,090,712.88 : x
  2. Step 2: Convert to fraction form
    7,187,436.57/9,919,532.24 = 4,090,712.88/x
  3. Step 3: Cross multiply
    7,187,436.57x = 9,919,532.24 × 4,090,712.88
  4. Step 4: Simplify right side
    7,187,436.57x = 40,577,958,297,743.25
  5. Step 5: Solve for x
    x = 40,577,958,297,743.25/7,187,436.57
  6. Step 6: Final answer
    x = 5,645,678.80

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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.