Home / 78,005,749.15-117,008,623.73-37,694,965.15

Finding the Fourth Proportional to 78,005,749.15, 117,008,623.73 and 37,694,965.15

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Solution

The fourth proportional to 78,005,749.15, 117,008,623.73 and 37,694,965.15 is: 56,542,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,005,749.15 : 117,008,623.73 = 37,694,965.15 : x
  2. Step 2: Convert to fraction form
    78,005,749.15/117,008,623.73 = 37,694,965.15/x
  3. Step 3: Cross multiply
    78,005,749.15x = 117,008,623.73 × 37,694,965.15
  4. Step 4: Simplify right side
    78,005,749.15x = 4,410,635,993,751,813
  5. Step 5: Solve for x
    x = 4,410,635,993,751,813/78,005,749.15
  6. Step 6: Final answer
    x = 56,542,447.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.