Home / 79,410,749.85-109,599,836.92-66,158,913.13

Finding the Fourth Proportional to 79,410,749.85, 109,599,836.92 and 66,158,913.13

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Solution

The fourth proportional to 79,410,749.85, 109,599,836.92 and 66,158,913.13 is: 91,310,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,410,749.85 : 109,599,836.92 = 66,158,913.13 : x
  2. Step 2: Convert to fraction form
    79,410,749.85/109,599,836.92 = 66,158,913.13/x
  3. Step 3: Cross multiply
    79,410,749.85x = 109,599,836.92 × 66,158,913.13
  4. Step 4: Simplify right side
    79,410,749.85x = 7,251,006,089,413,050
  5. Step 5: Solve for x
    x = 7,251,006,089,413,050/79,410,749.85
  6. Step 6: Final answer
    x = 91,310,132.48

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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.