Home / 87,488,871.31-120,738,310.66-50,319,161.94

Finding the Fourth Proportional to 87,488,871.31, 120,738,310.66 and 50,319,161.94

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Solution

The fourth proportional to 87,488,871.31, 120,738,310.66 and 50,319,161.94 is: 69,442,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,488,871.31 : 120,738,310.66 = 50,319,161.94 : x
  2. Step 2: Convert to fraction form
    87,488,871.31/120,738,310.66 = 50,319,161.94/x
  3. Step 3: Cross multiply
    87,488,871.31x = 120,738,310.66 × 50,319,161.94
  4. Step 4: Simplify right side
    87,488,871.31x = 6,075,450,606,462,568
  5. Step 5: Solve for x
    x = 6,075,450,606,462,568/87,488,871.31
  6. Step 6: Final answer
    x = 69,442,553.27

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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.