Home / 154,557,328.80-231,835,993.20-100,137,770.40

Finding the Fourth Proportional to 154,557,328.80, 231,835,993.20 and 100,137,770.40

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Solution

The fourth proportional to 154,557,328.80, 231,835,993.20 and 100,137,770.40 is: 150,206,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557,328.80 : 231,835,993.20 = 100,137,770.40 : x
  2. Step 2: Convert to fraction form
    154,557,328.80/231,835,993.20 = 100,137,770.40/x
  3. Step 3: Cross multiply
    154,557,328.80x = 231,835,993.20 × 100,137,770.40
  4. Step 4: Simplify right side
    154,557,328.80x = 23,215,539,457,517,560
  5. Step 5: Solve for x
    x = 23,215,539,457,517,560/154,557,328.80
  6. Step 6: Final answer
    x = 150,206,655.60

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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.