Home / 15,382,736.38-21,225,818.10-8,855,104.51

Finding the Fourth Proportional to 15,382,736.38, 21,225,818.10 and 8,855,104.51

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Solution

The fourth proportional to 15,382,736.38, 21,225,818.10 and 8,855,104.51 is: 12,218,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382,736.38 : 21,225,818.10 = 8,855,104.51 : x
  2. Step 2: Convert to fraction form
    15,382,736.38/21,225,818.10 = 8,855,104.51/x
  3. Step 3: Cross multiply
    15,382,736.38x = 21,225,818.10 × 8,855,104.51
  4. Step 4: Simplify right side
    15,382,736.38x = 187,956,837,585,749.62
  5. Step 5: Solve for x
    x = 187,956,837,585,749.62/15,382,736.38
  6. Step 6: Final answer
    x = 12,218,686.78

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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.