Home / 31,541,718.56-43,528,138.50-18,498,384.95

Finding the Fourth Proportional to 31,541,718.56, 43,528,138.50 and 18,498,384.95

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Solution

The fourth proportional to 31,541,718.56, 43,528,138.50 and 18,498,384.95 is: 25,528,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,541,718.56 : 43,528,138.50 = 18,498,384.95 : x
  2. Step 2: Convert to fraction form
    31,541,718.56/43,528,138.50 = 18,498,384.95/x
  3. Step 3: Cross multiply
    31,541,718.56x = 43,528,138.50 × 18,498,384.95
  4. Step 4: Simplify right side
    31,541,718.56x = 805,200,261,912,274.88
  5. Step 5: Solve for x
    x = 805,200,261,912,274.88/31,541,718.56
  6. Step 6: Final answer
    x = 25,528,103.69

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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.