Home / 28,246,943.70-38,980,625.61-15,857,033.85

Finding the Fourth Proportional to 28,246,943.70, 38,980,625.61 and 15,857,033.85

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Solution

The fourth proportional to 28,246,943.70, 38,980,625.61 and 15,857,033.85 is: 21,882,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246,943.70 : 38,980,625.61 = 15,857,033.85 : x
  2. Step 2: Convert to fraction form
    28,246,943.70/38,980,625.61 = 15,857,033.85/x
  3. Step 3: Cross multiply
    28,246,943.70x = 38,980,625.61 × 15,857,033.85
  4. Step 4: Simplify right side
    28,246,943.70x = 618,117,099,791,946.88
  5. Step 5: Solve for x
    x = 618,117,099,791,946.88/28,246,943.70
  6. Step 6: Final answer
    x = 21,882,618.75

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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.