Home / 815,213,082,380.45-1,124,997,451,690.50-449,399,249,285.60

Finding the Fourth Proportional to 815,213,082,380.45, 1,124,997,451,690.50 and 449,399,249,285.60

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Solution

The fourth proportional to 815,213,082,380.45, 1,124,997,451,690.50 and 449,399,249,285.60 is: 620,172,837,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,213,082,380.45 : 1,124,997,451,690.50 = 449,399,249,285.60 : x
  2. Step 2: Convert to fraction form
    815,213,082,380.45/1,124,997,451,690.50 = 449,399,249,285.60/x
  3. Step 3: Cross multiply
    815,213,082,380.45x = 1,124,997,451,690.50 × 449,399,249,285.60
  4. Step 4: Simplify right side
    815,213,082,380.45x = 505,573,010,237,923,736,420,352
  5. Step 5: Solve for x
    x = 505,573,010,237,923,736,420,352/815,213,082,380.45
  6. Step 6: Final answer
    x = 620,172,837,218.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.