Home / 815,213,082,378.45-1,124,997,451,687.70-449,399,249,283.60

Finding the Fourth Proportional to 815,213,082,378.45, 1,124,997,451,687.70 and 449,399,249,283.60

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Solution

The fourth proportional to 815,213,082,378.45, 1,124,997,451,687.70 and 449,399,249,283.60 is: 620,172,837,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,213,082,378.45 : 1,124,997,451,687.70 = 449,399,249,283.60 : x
  2. Step 2: Convert to fraction form
    815,213,082,378.45/1,124,997,451,687.70 = 449,399,249,283.60/x
  3. Step 3: Cross multiply
    815,213,082,378.45x = 1,124,997,451,687.70 × 449,399,249,283.60
  4. Step 4: Simplify right side
    815,213,082,378.45x = 505,573,010,234,415,419,228,160
  5. Step 5: Solve for x
    x = 505,573,010,234,415,419,228,160/815,213,082,378.45
  6. Step 6: Final answer
    x = 620,172,837,216.21

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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.