Home / 510,174,491.70-765,261,737.55-408,137,819.70

Finding the Fourth Proportional to 510,174,491.70, 765,261,737.55 and 408,137,819.70

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Solution

The fourth proportional to 510,174,491.70, 765,261,737.55 and 408,137,819.70 is: 612,206,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,174,491.70 : 765,261,737.55 = 408,137,819.70 : x
  2. Step 2: Convert to fraction form
    510,174,491.70/765,261,737.55 = 408,137,819.70/x
  3. Step 3: Cross multiply
    510,174,491.70x = 765,261,737.55 × 408,137,819.70
  4. Step 4: Simplify right side
    510,174,491.70x = 312,332,257,063,490,560
  5. Step 5: Solve for x
    x = 312,332,257,063,490,560/510,174,491.70
  6. Step 6: Final answer
    x = 612,206,729.55

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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.