Home / 84,208,213.72-116,261,992.56-75,372,350.86

Finding the Fourth Proportional to 84,208,213.72, 116,261,992.56 and 75,372,350.86

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Solution

The fourth proportional to 84,208,213.72, 116,261,992.56 and 75,372,350.86 is: 104,062,766.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,208,213.72 : 116,261,992.56 = 75,372,350.86 : x
  2. Step 2: Convert to fraction form
    84,208,213.72/116,261,992.56 = 75,372,350.86/x
  3. Step 3: Cross multiply
    84,208,213.72x = 116,261,992.56 × 75,372,350.86
  4. Step 4: Simplify right side
    84,208,213.72x = 8,762,939,694,915,030
  5. Step 5: Solve for x
    x = 8,762,939,694,915,030/84,208,213.72
  6. Step 6: Final answer
    x = 104,062,766.66

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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.