Home / 311,584,725.30-429,944,800.77-177,639,920.31

Finding the Fourth Proportional to 311,584,725.30, 429,944,800.77 and 177,639,920.31

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Solution

The fourth proportional to 311,584,725.30, 429,944,800.77 and 177,639,920.31 is: 245,119,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,584,725.30 : 429,944,800.77 = 177,639,920.31 : x
  2. Step 2: Convert to fraction form
    311,584,725.30/429,944,800.77 = 177,639,920.31/x
  3. Step 3: Cross multiply
    311,584,725.30x = 429,944,800.77 × 177,639,920.31
  4. Step 4: Simplify right side
    311,584,725.30x = 76,375,360,146,481,632
  5. Step 5: Solve for x
    x = 76,375,360,146,481,632/311,584,725.30
  6. Step 6: Final answer
    x = 245,119,076.59

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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.