Home / 257,806,423.68-355,780,198.40-140,339,329.28

Finding the Fourth Proportional to 257,806,423.68, 355,780,198.40 and 140,339,329.28

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Solution

The fourth proportional to 257,806,423.68, 355,780,198.40 and 140,339,329.28 is: 193,672,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,806,423.68 : 355,780,198.40 = 140,339,329.28 : x
  2. Step 2: Convert to fraction form
    257,806,423.68/355,780,198.40 = 140,339,329.28/x
  3. Step 3: Cross multiply
    257,806,423.68x = 355,780,198.40 × 140,339,329.28
  4. Step 4: Simplify right side
    257,806,423.68x = 49,929,954,414,561,328
  5. Step 5: Solve for x
    x = 49,929,954,414,561,328/257,806,423.68
  6. Step 6: Final answer
    x = 193,672,266.59

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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.