Home / 206,112,408.64-309,168,409.92-52,758,220.48

Finding the Fourth Proportional to 206,112,408.64, 309,168,409.92 and 52,758,220.48

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Solution

The fourth proportional to 206,112,408.64, 309,168,409.92 and 52,758,220.48 is: 79,137,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,112,408.64 : 309,168,409.92 = 52,758,220.48 : x
  2. Step 2: Convert to fraction form
    206,112,408.64/309,168,409.92 = 52,758,220.48/x
  3. Step 3: Cross multiply
    206,112,408.64x = 309,168,409.92 × 52,758,220.48
  4. Step 4: Simplify right side
    206,112,408.64x = 16,311,175,136,010,380
  5. Step 5: Solve for x
    x = 16,311,175,136,010,380/206,112,408.64
  6. Step 6: Final answer
    x = 79,137,278.75

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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.