Home / 165,931,257.12-228,985,147.44-91,591,835.28

Finding the Fourth Proportional to 165,931,257.12, 228,985,147.44 and 91,591,835.28

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Solution

The fourth proportional to 165,931,257.12, 228,985,147.44 and 91,591,835.28 is: 126,396,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,931,257.12 : 228,985,147.44 = 91,591,835.28 : x
  2. Step 2: Convert to fraction form
    165,931,257.12/228,985,147.44 = 91,591,835.28/x
  3. Step 3: Cross multiply
    165,931,257.12x = 228,985,147.44 × 91,591,835.28
  4. Step 4: Simplify right side
    165,931,257.12x = 20,973,169,905,890,992
  5. Step 5: Solve for x
    x = 20,973,169,905,890,992/165,931,257.12
  6. Step 6: Final answer
    x = 126,396,739.65

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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.