Home / 38,647,240.07-53,332,876.91-21,243,400.25

Finding the Fourth Proportional to 38,647,240.07, 53,332,876.91 and 21,243,400.25

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Solution

The fourth proportional to 38,647,240.07, 53,332,876.91 and 21,243,400.25 is: 29,315,719.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,647,240.07 : 53,332,876.91 = 21,243,400.25 : x
  2. Step 2: Convert to fraction form
    38,647,240.07/53,332,876.91 = 21,243,400.25/x
  3. Step 3: Cross multiply
    38,647,240.07x = 53,332,876.91 × 21,243,400.25
  4. Step 4: Simplify right side
    38,647,240.07x = 1,132,971,650,469,557.50
  5. Step 5: Solve for x
    x = 1,132,971,650,469,557.50/38,647,240.07
  6. Step 6: Final answer
    x = 29,315,719.53

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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.