Home / 50,720,136.80-69,987,883.81-28,394,345.37

Finding the Fourth Proportional to 50,720,136.80, 69,987,883.81 and 28,394,345.37

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Solution

The fourth proportional to 50,720,136.80, 69,987,883.81 and 28,394,345.37 is: 39,180,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720,136.80 : 69,987,883.81 = 28,394,345.37 : x
  2. Step 2: Convert to fraction form
    50,720,136.80/69,987,883.81 = 28,394,345.37/x
  3. Step 3: Cross multiply
    50,720,136.80x = 69,987,883.81 × 28,394,345.37
  4. Step 4: Simplify right side
    50,720,136.80x = 1,987,260,144,474,600
  5. Step 5: Solve for x
    x = 1,987,260,144,474,600/50,720,136.80
  6. Step 6: Final answer
    x = 39,180,890.86

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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.