Home / 91,219,911.82-125,883,438.44-49,403,979.24

Finding the Fourth Proportional to 91,219,911.82, 125,883,438.44 and 49,403,979.24

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Solution

The fourth proportional to 91,219,911.82, 125,883,438.44 and 49,403,979.24 is: 68,177,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,219,911.82 : 125,883,438.44 = 49,403,979.24 : x
  2. Step 2: Convert to fraction form
    91,219,911.82/125,883,438.44 = 49,403,979.24/x
  3. Step 3: Cross multiply
    91,219,911.82x = 125,883,438.44 × 49,403,979.24
  4. Step 4: Simplify right side
    91,219,911.82x = 6,219,142,779,102,558
  5. Step 5: Solve for x
    x = 6,219,142,779,102,558/91,219,911.82
  6. Step 6: Final answer
    x = 68,177,469.75

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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.