Home / 209,131,176.51-313,409,783.72-132,316,694.37

Finding the Fourth Proportional to 209,131,176.51, 313,409,783.72 and 132,316,694.37

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Solution

The fourth proportional to 209,131,176.51, 313,409,783.72 and 132,316,694.37 is: 198,293,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,131,176.51 : 313,409,783.72 = 132,316,694.37 : x
  2. Step 2: Convert to fraction form
    209,131,176.51/313,409,783.72 = 132,316,694.37/x
  3. Step 3: Cross multiply
    209,131,176.51x = 313,409,783.72 × 132,316,694.37
  4. Step 4: Simplify right side
    209,131,176.51x = 41,469,346,565,377,840
  5. Step 5: Solve for x
    x = 41,469,346,565,377,840/209,131,176.51
  6. Step 6: Final answer
    x = 198,293,469.47

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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.