Home / 154,790,170.45-213,603,984.39-84,226,057.76

Finding the Fourth Proportional to 154,790,170.45, 213,603,984.39 and 84,226,057.76

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Solution

The fourth proportional to 154,790,170.45, 213,603,984.39 and 84,226,057.76 is: 116,228,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,790,170.45 : 213,603,984.39 = 84,226,057.76 : x
  2. Step 2: Convert to fraction form
    154,790,170.45/213,603,984.39 = 84,226,057.76/x
  3. Step 3: Cross multiply
    154,790,170.45x = 213,603,984.39 × 84,226,057.76
  4. Step 4: Simplify right side
    154,790,170.45x = 17,991,021,526,998,278
  5. Step 5: Solve for x
    x = 17,991,021,526,998,278/154,790,170.45
  6. Step 6: Final answer
    x = 116,228,449.61

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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.