Home / 209,331,051.62-288,871,571.24-115,244,259.51

Finding the Fourth Proportional to 209,331,051.62, 288,871,571.24 and 115,244,259.51

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Solution

The fourth proportional to 209,331,051.62, 288,871,571.24 and 115,244,259.51 is: 159,034,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,331,051.62 : 288,871,571.24 = 115,244,259.51 : x
  2. Step 2: Convert to fraction form
    209,331,051.62/288,871,571.24 = 115,244,259.51/x
  3. Step 3: Cross multiply
    209,331,051.62x = 288,871,571.24 × 115,244,259.51
  4. Step 4: Simplify right side
    209,331,051.62x = 33,290,790,321,819,168
  5. Step 5: Solve for x
    x = 33,290,790,321,819,168/209,331,051.62
  6. Step 6: Final answer
    x = 159,034,171.30

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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.