Home / 12,382,043.61-18,489,687.16-10,112,074.30

Finding the Fourth Proportional to 12,382,043.61, 18,489,687.16 and 10,112,074.30

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Solution

The fourth proportional to 12,382,043.61, 18,489,687.16 and 10,112,074.30 is: 15,100,018.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382,043.61 : 18,489,687.16 = 10,112,074.30 : x
  2. Step 2: Convert to fraction form
    12,382,043.61/18,489,687.16 = 10,112,074.30/x
  3. Step 3: Cross multiply
    12,382,043.61x = 18,489,687.16 × 10,112,074.30
  4. Step 4: Simplify right side
    12,382,043.61x = 186,969,090,345,676
  5. Step 5: Solve for x
    x = 186,969,090,345,676/12,382,043.61
  6. Step 6: Final answer
    x = 15,100,018.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.