Home / 209,952,203.55-314,928,305.33-129,218,661.15

Finding the Fourth Proportional to 209,952,203.55, 314,928,305.33 and 129,218,661.15

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Solution

The fourth proportional to 209,952,203.55, 314,928,305.33 and 129,218,661.15 is: 193,827,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,203.55 : 314,928,305.33 = 129,218,661.15 : x
  2. Step 2: Convert to fraction form
    209,952,203.55/314,928,305.33 = 129,218,661.15/x
  3. Step 3: Cross multiply
    209,952,203.55x = 314,928,305.33 × 129,218,661.15
  4. Step 4: Simplify right side
    209,952,203.55x = 40,694,613,972,334,912
  5. Step 5: Solve for x
    x = 40,694,613,972,334,912/209,952,203.55
  6. Step 6: Final answer
    x = 193,827,991.73

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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.