Home / 259,073,749.31-388,215,185.67-153,821,829.92

Finding the Fourth Proportional to 259,073,749.31, 388,215,185.67 and 153,821,829.92

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Solution

The fourth proportional to 259,073,749.31, 388,215,185.67 and 153,821,829.92 is: 230,497,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,073,749.31 : 388,215,185.67 = 153,821,829.92 : x
  2. Step 2: Convert to fraction form
    259,073,749.31/388,215,185.67 = 153,821,829.92/x
  3. Step 3: Cross multiply
    259,073,749.31x = 388,215,185.67 × 153,821,829.92
  4. Step 4: Simplify right side
    259,073,749.31x = 59,715,970,260,550,888
  5. Step 5: Solve for x
    x = 59,715,970,260,550,888/259,073,749.31
  6. Step 6: Final answer
    x = 230,497,958.29

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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.