Home / 144,511,947.45-199,426,684.37-78,432,446.54

Finding the Fourth Proportional to 144,511,947.45, 199,426,684.37 and 78,432,446.54

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Solution

The fourth proportional to 144,511,947.45, 199,426,684.37 and 78,432,446.54 is: 108,236,883.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,511,947.45 : 199,426,684.37 = 78,432,446.54 : x
  2. Step 2: Convert to fraction form
    144,511,947.45/199,426,684.37 = 78,432,446.54/x
  3. Step 3: Cross multiply
    144,511,947.45x = 199,426,684.37 × 78,432,446.54
  4. Step 4: Simplify right side
    144,511,947.45x = 15,641,522,760,605,884
  5. Step 5: Solve for x
    x = 15,641,522,760,605,884/144,511,947.45
  6. Step 6: Final answer
    x = 108,236,883.09

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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.