Home / 121,405,912.70-182,108,869.06-108,651,328.70

Finding the Fourth Proportional to 121,405,912.70, 182,108,869.06 and 108,651,328.70

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Solution

The fourth proportional to 121,405,912.70, 182,108,869.06 and 108,651,328.70 is: 162,976,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,405,912.70 : 182,108,869.06 = 108,651,328.70 : x
  2. Step 2: Convert to fraction form
    121,405,912.70/182,108,869.06 = 108,651,328.70/x
  3. Step 3: Cross multiply
    121,405,912.70x = 182,108,869.06 × 108,651,328.70
  4. Step 4: Simplify right side
    121,405,912.70x = 19,786,370,591,423,320
  5. Step 5: Solve for x
    x = 19,786,370,591,423,320/121,405,912.70
  6. Step 6: Final answer
    x = 162,976,993.06

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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.