Home / 39,188,945.40-54,082,132.34-21,549,190.47

Finding the Fourth Proportional to 39,188,945.40, 54,082,132.34 and 21,549,190.47

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Solution

The fourth proportional to 39,188,945.40, 54,082,132.34 and 21,549,190.47 is: 29,738,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188,945.40 : 54,082,132.34 = 21,549,190.47 : x
  2. Step 2: Convert to fraction form
    39,188,945.40/54,082,132.34 = 21,549,190.47/x
  3. Step 3: Cross multiply
    39,188,945.40x = 54,082,132.34 × 21,549,190.47
  4. Step 4: Simplify right side
    39,188,945.40x = 1,165,426,170,710,660.75
  5. Step 5: Solve for x
    x = 1,165,426,170,710,660.75/39,188,945.40
  6. Step 6: Final answer
    x = 29,738,645.91

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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.