Home / 165,309,385.76-228,129,050.88-90,978,504.64

Finding the Fourth Proportional to 165,309,385.76, 228,129,050.88 and 90,978,504.64

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Solution

The fourth proportional to 165,309,385.76, 228,129,050.88 and 90,978,504.64 is: 125,551,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,309,385.76 : 228,129,050.88 = 90,978,504.64 : x
  2. Step 2: Convert to fraction form
    165,309,385.76/228,129,050.88 = 90,978,504.64/x
  3. Step 3: Cross multiply
    165,309,385.76x = 228,129,050.88 × 90,978,504.64
  4. Step 4: Simplify right side
    165,309,385.76x = 20,754,839,914,004,876
  5. Step 5: Solve for x
    x = 20,754,839,914,004,876/165,309,385.76
  6. Step 6: Final answer
    x = 125,551,491.34

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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.