Home / 318,629,863.80-477,944,795.70-219,994,414.20

Finding the Fourth Proportional to 318,629,863.80, 477,944,795.70 and 219,994,414.20

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Solution

The fourth proportional to 318,629,863.80, 477,944,795.70 and 219,994,414.20 is: 329,991,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,629,863.80 : 477,944,795.70 = 219,994,414.20 : x
  2. Step 2: Convert to fraction form
    318,629,863.80/477,944,795.70 = 219,994,414.20/x
  3. Step 3: Cross multiply
    318,629,863.80x = 477,944,795.70 × 219,994,414.20
  4. Step 4: Simplify right side
    318,629,863.80x = 105,145,185,349,960,176
  5. Step 5: Solve for x
    x = 105,145,185,349,960,176/318,629,863.80
  6. Step 6: Final answer
    x = 329,991,621.30

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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.