Home / 154,611,517.80-213,351,211.62-91,021,763.64

Finding the Fourth Proportional to 154,611,517.80, 213,351,211.62 and 91,021,763.64

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Solution

The fourth proportional to 154,611,517.80, 213,351,211.62 and 91,021,763.64 is: 125,602,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,611,517.80 : 213,351,211.62 = 91,021,763.64 : x
  2. Step 2: Convert to fraction form
    154,611,517.80/213,351,211.62 = 91,021,763.64/x
  3. Step 3: Cross multiply
    154,611,517.80x = 213,351,211.62 × 91,021,763.64
  4. Step 4: Simplify right side
    154,611,517.80x = 19,419,603,556,383,264
  5. Step 5: Solve for x
    x = 19,419,603,556,383,264/154,611,517.80
  6. Step 6: Final answer
    x = 125,602,567.21

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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.