Home / 177,640,206-245,068,418.52-118,921,786.80

Finding the Fourth Proportional to 177,640,206, 245,068,418.52 and 118,921,786.80

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Solution

The fourth proportional to 177,640,206, 245,068,418.52 and 118,921,786.80 is: 164,061,812.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,640,206 : 245,068,418.52 = 118,921,786.80 : x
  2. Step 2: Convert to fraction form
    177,640,206/245,068,418.52 = 118,921,786.80/x
  3. Step 3: Cross multiply
    177,640,206x = 245,068,418.52 × 118,921,786.80
  4. Step 4: Simplify right side
    177,640,206x = 29,143,974,218,648,612
  5. Step 5: Solve for x
    x = 29,143,974,218,648,612/177,640,206
  6. Step 6: Final answer
    x = 164,061,812.78

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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.