Home / 187,639,868.76-281,586,960.89-76,995,541.71

Finding the Fourth Proportional to 187,639,868.76, 281,586,960.89 and 76,995,541.71

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Solution

The fourth proportional to 187,639,868.76, 281,586,960.89 and 76,995,541.71 is: 115,545,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,639,868.76 : 281,586,960.89 = 76,995,541.71 : x
  2. Step 2: Convert to fraction form
    187,639,868.76/281,586,960.89 = 76,995,541.71/x
  3. Step 3: Cross multiply
    187,639,868.76x = 281,586,960.89 × 76,995,541.71
  4. Step 4: Simplify right side
    187,639,868.76x = 21,680,940,591,813,152
  5. Step 5: Solve for x
    x = 21,680,940,591,813,152/187,639,868.76
  6. Step 6: Final answer
    x = 115,545,490.07

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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.