Home / 275,256,153.98-412,821,137.31-78,515,822.42

Finding the Fourth Proportional to 275,256,153.98, 412,821,137.31 and 78,515,822.42

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Solution

The fourth proportional to 275,256,153.98, 412,821,137.31 and 78,515,822.42 is: 117,755,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,256,153.98 : 412,821,137.31 = 78,515,822.42 : x
  2. Step 2: Convert to fraction form
    275,256,153.98/412,821,137.31 = 78,515,822.42/x
  3. Step 3: Cross multiply
    275,256,153.98x = 412,821,137.31 × 78,515,822.42
  4. Step 4: Simplify right side
    275,256,153.98x = 32,412,991,108,254,396
  5. Step 5: Solve for x
    x = 32,412,991,108,254,396/275,256,153.98
  6. Step 6: Final answer
    x = 117,755,736.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.