Home / 318,629,711.80-477,944,567.70-219,994,262.20

Finding the Fourth Proportional to 318,629,711.80, 477,944,567.70 and 219,994,262.20

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Solution

The fourth proportional to 318,629,711.80, 477,944,567.70 and 219,994,262.20 is: 329,991,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,629,711.80 : 477,944,567.70 = 219,994,262.20 : x
  2. Step 2: Convert to fraction form
    318,629,711.80/477,944,567.70 = 219,994,262.20/x
  3. Step 3: Cross multiply
    318,629,711.80x = 477,944,567.70 × 219,994,262.20
  4. Step 4: Simplify right side
    318,629,711.80x = 105,145,062,543,659,440
  5. Step 5: Solve for x
    x = 105,145,062,543,659,440/318,629,711.80
  6. Step 6: Final answer
    x = 329,991,393.30

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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.