Home / 144,813,420.06-199,846,438.38-78,738,354.42

Finding the Fourth Proportional to 144,813,420.06, 199,846,438.38 and 78,738,354.42

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Solution

The fourth proportional to 144,813,420.06, 199,846,438.38 and 78,738,354.42 is: 108,661,059.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,813,420.06 : 199,846,438.38 = 78,738,354.42 : x
  2. Step 2: Convert to fraction form
    144,813,420.06/199,846,438.38 = 78,738,354.42/x
  3. Step 3: Cross multiply
    144,813,420.06x = 199,846,438.38 × 78,738,354.42
  4. Step 4: Simplify right side
    144,813,420.06x = 15,735,579,694,739,130
  5. Step 5: Solve for x
    x = 15,735,579,694,739,130/144,813,420.06
  6. Step 6: Final answer
    x = 108,661,059.78

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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.