Home / 84,208,212.72-116,261,991.18-75,372,349.86

Finding the Fourth Proportional to 84,208,212.72, 116,261,991.18 and 75,372,349.86

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Solution

The fourth proportional to 84,208,212.72, 116,261,991.18 and 75,372,349.86 is: 104,062,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,208,212.72 : 116,261,991.18 = 75,372,349.86 : x
  2. Step 2: Convert to fraction form
    84,208,212.72/116,261,991.18 = 75,372,349.86/x
  3. Step 3: Cross multiply
    84,208,212.72x = 116,261,991.18 × 75,372,349.86
  4. Step 4: Simplify right side
    84,208,212.72x = 8,762,939,474,639,195
  5. Step 5: Solve for x
    x = 8,762,939,474,639,195/84,208,212.72
  6. Step 6: Final answer
    x = 104,062,765.28

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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.