Home / 50,720,120.36-69,987,861.15-28,394,328.93

Finding the Fourth Proportional to 50,720,120.36, 69,987,861.15 and 28,394,328.93

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Solution

The fourth proportional to 50,720,120.36, 69,987,861.15 and 28,394,328.93 is: 39,180,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720,120.36 : 69,987,861.15 = 28,394,328.93 : x
  2. Step 2: Convert to fraction form
    50,720,120.36/69,987,861.15 = 28,394,328.93/x
  3. Step 3: Cross multiply
    50,720,120.36x = 69,987,861.15 × 28,394,328.93
  4. Step 4: Simplify right side
    50,720,120.36x = 1,987,258,350,337,813.75
  5. Step 5: Solve for x
    x = 1,987,258,350,337,813.75/50,720,120.36
  6. Step 6: Final answer
    x = 39,180,868.19

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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.