Home / 466,226,532.33-643,375,747.71-257,378,190.54

Finding the Fourth Proportional to 466,226,532.33, 643,375,747.71 and 257,378,190.54

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Solution

The fourth proportional to 466,226,532.33, 643,375,747.71 and 257,378,190.54 is: 355,172,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,226,532.33 : 643,375,747.71 = 257,378,190.54 : x
  2. Step 2: Convert to fraction form
    466,226,532.33/643,375,747.71 = 257,378,190.54/x
  3. Step 3: Cross multiply
    466,226,532.33x = 643,375,747.71 × 257,378,190.54
  4. Step 4: Simplify right side
    466,226,532.33x = 165,590,885,782,919,360
  5. Step 5: Solve for x
    x = 165,590,885,782,919,360/466,226,532.33
  6. Step 6: Final answer
    x = 355,172,591.65

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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.