Home / 815,213,082,379.45-1,124,997,451,689.10-449,399,249,284.60

Finding the Fourth Proportional to 815,213,082,379.45, 1,124,997,451,689.10 and 449,399,249,284.60

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Solution

The fourth proportional to 815,213,082,379.45, 1,124,997,451,689.10 and 449,399,249,284.60 is: 620,172,837,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,213,082,379.45 : 1,124,997,451,689.10 = 449,399,249,284.60 : x
  2. Step 2: Convert to fraction form
    815,213,082,379.45/1,124,997,451,689.10 = 449,399,249,284.60/x
  3. Step 3: Cross multiply
    815,213,082,379.45x = 1,124,997,451,689.10 × 449,399,249,284.60
  4. Step 4: Simplify right side
    815,213,082,379.45x = 505,573,010,236,169,644,933,120
  5. Step 5: Solve for x
    x = 505,573,010,236,169,644,933,120/815,213,082,379.45
  6. Step 6: Final answer
    x = 620,172,837,217.60

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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.