Home / 1,160,209,279.39-1,740,371,639.71-331,285,912.78

Finding the Fourth Proportional to 1,160,209,279.39, 1,740,371,639.71 and 331,285,912.78

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Solution

The fourth proportional to 1,160,209,279.39, 1,740,371,639.71 and 331,285,912.78 is: 496,945,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160,209,279.39 : 1,740,371,639.71 = 331,285,912.78 : x
  2. Step 2: Convert to fraction form
    1,160,209,279.39/1,740,371,639.71 = 331,285,912.78/x
  3. Step 3: Cross multiply
    1,160,209,279.39x = 1,740,371,639.71 × 331,285,912.78
  4. Step 4: Simplify right side
    1,160,209,279.39x = 576,560,607,240,955,136
  5. Step 5: Solve for x
    x = 576,560,607,240,955,136/1,160,209,279.39
  6. Step 6: Final answer
    x = 496,945,350.71

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Double scale
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1.5x scale

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.