Home / 312,313,300.03-431,039,823.33-199,331,565.78

Finding the Fourth Proportional to 312,313,300.03, 431,039,823.33 and 199,331,565.78

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Solution

The fourth proportional to 312,313,300.03, 431,039,823.33 and 199,331,565.78 is: 275,107,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,313,300.03 : 431,039,823.33 = 199,331,565.78 : x
  2. Step 2: Convert to fraction form
    312,313,300.03/431,039,823.33 = 199,331,565.78/x
  3. Step 3: Cross multiply
    312,313,300.03x = 431,039,823.33 × 199,331,565.78
  4. Step 4: Simplify right side
    312,313,300.03x = 85,919,842,896,160,256
  5. Step 5: Solve for x
    x = 85,919,842,896,160,256/312,313,300.03
  6. Step 6: Final answer
    x = 275,107,857.68

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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.