Home / 18,929,546.74-28,382,947.71-7,401,279.52

Finding the Fourth Proportional to 18,929,546.74, 28,382,947.71 and 7,401,279.52

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Solution

The fourth proportional to 18,929,546.74, 28,382,947.71 and 7,401,279.52 is: 11,097,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929,546.74 : 28,382,947.71 = 7,401,279.52 : x
  2. Step 2: Convert to fraction form
    18,929,546.74/28,382,947.71 = 7,401,279.52/x
  3. Step 3: Cross multiply
    18,929,546.74x = 28,382,947.71 × 7,401,279.52
  4. Step 4: Simplify right side
    18,929,546.74x = 210,070,129,603,253.91
  5. Step 5: Solve for x
    x = 210,070,129,603,253.91/18,929,546.74
  6. Step 6: Final answer
    x = 11,097,472.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.