Home / 15,855,144.75-21,880,121.63-8,611,800.75

Finding the Fourth Proportional to 15,855,144.75, 21,880,121.63 and 8,611,800.75

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Solution

The fourth proportional to 15,855,144.75, 21,880,121.63 and 8,611,800.75 is: 11,884,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855,144.75 : 21,880,121.63 = 8,611,800.75 : x
  2. Step 2: Convert to fraction form
    15,855,144.75/21,880,121.63 = 8,611,800.75/x
  3. Step 3: Cross multiply
    15,855,144.75x = 21,880,121.63 × 8,611,800.75
  4. Step 4: Simplify right side
    15,855,144.75x = 188,427,247,820,266.22
  5. Step 5: Solve for x
    x = 188,427,247,820,266.22/15,855,144.75
  6. Step 6: Final answer
    x = 11,884,296.91

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1.5x scale

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.