Home / 143,859,152.53-198,525,257.09-80,278,825.05

Finding the Fourth Proportional to 143,859,152.53, 198,525,257.09 and 80,278,825.05

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Solution

The fourth proportional to 143,859,152.53, 198,525,257.09 and 80,278,825.05 is: 110,784,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,859,152.53 : 198,525,257.09 = 80,278,825.05 : x
  2. Step 2: Convert to fraction form
    143,859,152.53/198,525,257.09 = 80,278,825.05/x
  3. Step 3: Cross multiply
    143,859,152.53x = 198,525,257.09 × 80,278,825.05
  4. Step 4: Simplify right side
    143,859,152.53x = 15,937,374,380,540,362
  5. Step 5: Solve for x
    x = 15,937,374,380,540,362/143,859,152.53
  6. Step 6: Final answer
    x = 110,784,570.19

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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.