Home / 165,309,343.14-228,128,992.11-90,978,461.94

Finding the Fourth Proportional to 165,309,343.14, 228,128,992.11 and 90,978,461.94

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Solution

The fourth proportional to 165,309,343.14, 228,128,992.11 and 90,978,461.94 is: 125,551,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,309,343.14 : 228,128,992.11 = 90,978,461.94 : x
  2. Step 2: Convert to fraction form
    165,309,343.14/228,128,992.11 = 90,978,461.94/x
  3. Step 3: Cross multiply
    165,309,343.14x = 228,128,992.11 × 90,978,461.94
  4. Step 4: Simplify right side
    165,309,343.14x = 20,754,824,826,090,196
  5. Step 5: Solve for x
    x = 20,754,824,826,090,196/165,309,343.14
  6. Step 6: Final answer
    x = 125,551,432.43

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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.