Home / 15,621,912.60-21,557,998.62-8,746,640.70

Finding the Fourth Proportional to 15,621,912.60, 21,557,998.62 and 8,746,640.70

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Solution

The fourth proportional to 15,621,912.60, 21,557,998.62 and 8,746,640.70 is: 12,070,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621,912.60 : 21,557,998.62 = 8,746,640.70 : x
  2. Step 2: Convert to fraction form
    15,621,912.60/21,557,998.62 = 8,746,640.70/x
  3. Step 3: Cross multiply
    15,621,912.60x = 21,557,998.62 × 8,746,640.70
  4. Step 4: Simplify right side
    15,621,912.60x = 188,560,068,140,235.81
  5. Step 5: Solve for x
    x = 188,560,068,140,235.81/15,621,912.60
  6. Step 6: Final answer
    x = 12,070,229.36

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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.