Home / 15,112,383.84-20,855,105.52-8,236,871.52

Finding the Fourth Proportional to 15,112,383.84, 20,855,105.52 and 8,236,871.52

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Solution

The fourth proportional to 15,112,383.84, 20,855,105.52 and 8,236,871.52 is: 11,366,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112,383.84 : 20,855,105.52 = 8,236,871.52 : x
  2. Step 2: Convert to fraction form
    15,112,383.84/20,855,105.52 = 8,236,871.52/x
  3. Step 3: Cross multiply
    15,112,383.84x = 20,855,105.52 × 8,236,871.52
  4. Step 4: Simplify right side
    15,112,383.84x = 171,780,824,704,282.78
  5. Step 5: Solve for x
    x = 171,780,824,704,282.78/15,112,383.84
  6. Step 6: Final answer
    x = 11,366,891.32

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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.