Home / 166,196,331.72-229,362,811.74-91,855,291.86

Finding the Fourth Proportional to 166,196,331.72, 229,362,811.74 and 91,855,291.86

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Solution

The fourth proportional to 166,196,331.72, 229,362,811.74 and 91,855,291.86 is: 126,766,865.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,196,331.72 : 229,362,811.74 = 91,855,291.86 : x
  2. Step 2: Convert to fraction form
    166,196,331.72/229,362,811.74 = 91,855,291.86/x
  3. Step 3: Cross multiply
    166,196,331.72x = 229,362,811.74 × 91,855,291.86
  4. Step 4: Simplify right side
    166,196,331.72x = 21,068,188,014,207,936
  5. Step 5: Solve for x
    x = 21,068,188,014,207,936/166,196,331.72
  6. Step 6: Final answer
    x = 126,766,865.41

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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.