Home / 120,880,705.78-166,813,778.28-67,235,005.18

Finding the Fourth Proportional to 120,880,705.78, 166,813,778.28 and 67,235,005.18

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Solution

The fourth proportional to 120,880,705.78, 166,813,778.28 and 67,235,005.18 is: 92,783,419.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,880,705.78 : 166,813,778.28 = 67,235,005.18 : x
  2. Step 2: Convert to fraction form
    120,880,705.78/166,813,778.28 = 67,235,005.18/x
  3. Step 3: Cross multiply
    120,880,705.78x = 166,813,778.28 × 67,235,005.18
  4. Step 4: Simplify right side
    120,880,705.78x = 11,215,725,246,751,172
  5. Step 5: Solve for x
    x = 11,215,725,246,751,172/120,880,705.78
  6. Step 6: Final answer
    x = 92,783,419.61

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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.