Home / 15,621,913.38-21,557,999.70-8,746,641.48

Finding the Fourth Proportional to 15,621,913.38, 21,557,999.70 and 8,746,641.48

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Solution

The fourth proportional to 15,621,913.38, 21,557,999.70 and 8,746,641.48 is: 12,070,230.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621,913.38 : 21,557,999.70 = 8,746,641.48 : x
  2. Step 2: Convert to fraction form
    15,621,913.38/21,557,999.70 = 8,746,641.48/x
  3. Step 3: Cross multiply
    15,621,913.38x = 21,557,999.70 × 8,746,641.48
  4. Step 4: Simplify right side
    15,621,913.38x = 188,560,094,401,847.56
  5. Step 5: Solve for x
    x = 188,560,094,401,847.56/15,621,913.38
  6. Step 6: Final answer
    x = 12,070,230.44

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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.