Home / 815,213,082,381.44-1,124,997,451,691.90-449,399,249,286.60

Finding the Fourth Proportional to 815,213,082,381.44, 1,124,997,451,691.90 and 449,399,249,286.60

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Solution

The fourth proportional to 815,213,082,381.44, 1,124,997,451,691.90 and 449,399,249,286.60 is: 620,172,837,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,213,082,381.44 : 1,124,997,451,691.90 = 449,399,249,286.60 : x
  2. Step 2: Convert to fraction form
    815,213,082,381.44/1,124,997,451,691.90 = 449,399,249,286.60/x
  3. Step 3: Cross multiply
    815,213,082,381.44x = 1,124,997,451,691.90 × 449,399,249,286.60
  4. Step 4: Simplify right side
    815,213,082,381.44x = 505,573,010,239,677,827,907,584
  5. Step 5: Solve for x
    x = 505,573,010,239,677,827,907,584/815,213,082,381.44
  6. Step 6: Final answer
    x = 620,172,837,220.39

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Double scale
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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.