Home / 165,888,776.80-248,833,165.20-80,954,120.80

Finding the Fourth Proportional to 165,888,776.80, 248,833,165.20 and 80,954,120.80

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Solution

The fourth proportional to 165,888,776.80, 248,833,165.20 and 80,954,120.80 is: 121,431,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,888,776.80 : 248,833,165.20 = 80,954,120.80 : x
  2. Step 2: Convert to fraction form
    165,888,776.80/248,833,165.20 = 80,954,120.80/x
  3. Step 3: Cross multiply
    165,888,776.80x = 248,833,165.20 × 80,954,120.80
  4. Step 4: Simplify right side
    165,888,776.80x = 20,144,070,114,647,156
  5. Step 5: Solve for x
    x = 20,144,070,114,647,156/165,888,776.80
  6. Step 6: Final answer
    x = 121,431,181.20

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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.