Home / 10,115,255.36-15,156,903.36-8,212,701.44

Finding the Fourth Proportional to 10,115,255.36, 15,156,903.36 and 8,212,701.44

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Solution

The fourth proportional to 10,115,255.36, 15,156,903.36 and 8,212,701.44 is: 12,306,078.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115,255.36 : 15,156,903.36 = 8,212,701.44 : x
  2. Step 2: Convert to fraction form
    10,115,255.36/15,156,903.36 = 8,212,701.44/x
  3. Step 3: Cross multiply
    10,115,255.36x = 15,156,903.36 × 8,212,701.44
  4. Step 4: Simplify right side
    10,115,255.36x = 124,479,122,050,612.84
  5. Step 5: Solve for x
    x = 124,479,122,050,612.84/10,115,255.36
  6. Step 6: Final answer
    x = 12,306,078.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.