Home / 15,112,371.84-20,855,088.96-8,236,859.52

Finding the Fourth Proportional to 15,112,371.84, 20,855,088.96 and 8,236,859.52

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Solution

The fourth proportional to 15,112,371.84, 20,855,088.96 and 8,236,859.52 is: 11,366,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112,371.84 : 20,855,088.96 = 8,236,859.52 : x
  2. Step 2: Convert to fraction form
    15,112,371.84/20,855,088.96 = 8,236,859.52/x
  3. Step 3: Cross multiply
    15,112,371.84x = 20,855,088.96 × 8,236,859.52
  4. Step 4: Simplify right side
    15,112,371.84x = 171,780,438,040,622.91
  5. Step 5: Solve for x
    x = 171,780,438,040,622.91/15,112,371.84
  6. Step 6: Final answer
    x = 11,366,874.76

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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.