Home / 203,904,015.40-305,856,023.10-67,610,434.60

Finding the Fourth Proportional to 203,904,015.40, 305,856,023.10 and 67,610,434.60

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Solution

The fourth proportional to 203,904,015.40, 305,856,023.10 and 67,610,434.60 is: 101,415,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,904,015.40 : 305,856,023.10 = 67,610,434.60 : x
  2. Step 2: Convert to fraction form
    203,904,015.40/305,856,023.10 = 67,610,434.60/x
  3. Step 3: Cross multiply
    203,904,015.40x = 305,856,023.10 × 67,610,434.60
  4. Step 4: Simplify right side
    203,904,015.40x = 20,679,058,646,818,640
  5. Step 5: Solve for x
    x = 20,679,058,646,818,640/203,904,015.40
  6. Step 6: Final answer
    x = 101,415,651.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.