Home / 221,165,187.40-331,324,766.70-118,895,235.40

Finding the Fourth Proportional to 221,165,187.40, 331,324,766.70 and 118,895,235.40

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Solution

The fourth proportional to 221,165,187.40, 331,324,766.70 and 118,895,235.40 is: 178,115,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,165,187.40 : 331,324,766.70 = 118,895,235.40 : x
  2. Step 2: Convert to fraction form
    221,165,187.40/331,324,766.70 = 118,895,235.40/x
  3. Step 3: Cross multiply
    221,165,187.40x = 331,324,766.70 × 118,895,235.40
  4. Step 4: Simplify right side
    221,165,187.40x = 39,392,936,130,646,584
  5. Step 5: Solve for x
    x = 39,392,936,130,646,584/221,165,187.40
  6. Step 6: Final answer
    x = 178,115,446.62

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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.