Home / 120,394,785.90-166,146,981.32-68,194,624.26

Finding the Fourth Proportional to 120,394,785.90, 166,146,981.32 and 68,194,624.26

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Solution

The fourth proportional to 120,394,785.90, 166,146,981.32 and 68,194,624.26 is: 94,109,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,394,785.90 : 166,146,981.32 = 68,194,624.26 : x
  2. Step 2: Convert to fraction form
    120,394,785.90/166,146,981.32 = 68,194,624.26/x
  3. Step 3: Cross multiply
    120,394,785.90x = 166,146,981.32 × 68,194,624.26
  4. Step 4: Simplify right side
    120,394,785.90x = 11,330,330,962,709,666
  5. Step 5: Solve for x
    x = 11,330,330,962,709,666/120,394,785.90
  6. Step 6: Final answer
    x = 94,109,814.46

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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.