Home / 378,082,539,441.18-521,755,476,400.83-204,467,678,884.29

Finding the Fourth Proportional to 378,082,539,441.18, 521,755,476,400.83 and 204,467,678,884.29

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Solution

The fourth proportional to 378,082,539,441.18, 521,755,476,400.83 and 204,467,678,884.29 is: 282,166,246,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,082,539,441.18 : 521,755,476,400.83 = 204,467,678,884.29 : x
  2. Step 2: Convert to fraction form
    378,082,539,441.18/521,755,476,400.83 = 204,467,678,884.29/x
  3. Step 3: Cross multiply
    378,082,539,441.18x = 521,755,476,400.83 × 204,467,678,884.29
  4. Step 4: Simplify right side
    378,082,539,441.18x = 106,682,131,204,844,669,632,512
  5. Step 5: Solve for x
    x = 106,682,131,204,844,669,632,512/378,082,539,441.18
  6. Step 6: Final answer
    x = 282,166,246,985.45

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1.5x scale

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.