Home / 165,939,778.20-248,909,667.30-79,846,336.20

Finding the Fourth Proportional to 165,939,778.20, 248,909,667.30 and 79,846,336.20

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Solution

The fourth proportional to 165,939,778.20, 248,909,667.30 and 79,846,336.20 is: 119,769,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,939,778.20 : 248,909,667.30 = 79,846,336.20 : x
  2. Step 2: Convert to fraction form
    165,939,778.20/248,909,667.30 = 79,846,336.20/x
  3. Step 3: Cross multiply
    165,939,778.20x = 248,909,667.30 × 79,846,336.20
  4. Step 4: Simplify right side
    165,939,778.20x = 19,874,524,978,665,948
  5. Step 5: Solve for x
    x = 19,874,524,978,665,948/165,939,778.20
  6. Step 6: Final answer
    x = 119,769,504.30

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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.