Home / 499,436,342.17-689,223,626.76-276,433,512.62

Finding the Fourth Proportional to 499,436,342.17, 689,223,626.76 and 276,433,512.62

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Solution

The fourth proportional to 499,436,342.17, 689,223,626.76 and 276,433,512.62 is: 381,479,063.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,436,342.17 : 689,223,626.76 = 276,433,512.62 : x
  2. Step 2: Convert to fraction form
    499,436,342.17/689,223,626.76 = 276,433,512.62/x
  3. Step 3: Cross multiply
    499,436,342.17x = 689,223,626.76 × 276,433,512.62
  4. Step 4: Simplify right side
    499,436,342.17x = 190,524,508,123,550,368
  5. Step 5: Solve for x
    x = 190,524,508,123,550,368/499,436,342.17
  6. Step 6: Final answer
    x = 381,479,063.57

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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.