Home / 15,855,149.50-21,880,128.18-8,611,805.50

Finding the Fourth Proportional to 15,855,149.50, 21,880,128.18 and 8,611,805.50

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Solution

The fourth proportional to 15,855,149.50, 21,880,128.18 and 8,611,805.50 is: 11,884,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855,149.50 : 21,880,128.18 = 8,611,805.50 : x
  2. Step 2: Convert to fraction form
    15,855,149.50/21,880,128.18 = 8,611,805.50/x
  3. Step 3: Cross multiply
    15,855,149.50x = 21,880,128.18 × 8,611,805.50
  4. Step 4: Simplify right side
    15,855,149.50x = 188,427,408,201,229
  5. Step 5: Solve for x
    x = 188,427,408,201,229/15,855,149.50
  6. Step 6: Final answer
    x = 11,884,303.47

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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.