Home / 165,309,341.64-228,128,990.04-90,978,460.44

Finding the Fourth Proportional to 165,309,341.64, 228,128,990.04 and 90,978,460.44

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Solution

The fourth proportional to 165,309,341.64, 228,128,990.04 and 90,978,460.44 is: 125,551,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,309,341.64 : 228,128,990.04 = 90,978,460.44 : x
  2. Step 2: Convert to fraction form
    165,309,341.64/228,128,990.04 = 90,978,460.44/x
  3. Step 3: Cross multiply
    165,309,341.64x = 228,128,990.04 × 90,978,460.44
  4. Step 4: Simplify right side
    165,309,341.64x = 20,754,824,295,571,292
  5. Step 5: Solve for x
    x = 20,754,824,295,571,292/165,309,341.64
  6. Step 6: Final answer
    x = 125,551,430.36

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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.