Home / 15,184,461.22-20,954,499.05-8,215,116.86

Finding the Fourth Proportional to 15,184,461.22, 20,954,499.05 and 8,215,116.86

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Solution

The fourth proportional to 15,184,461.22, 20,954,499.05 and 8,215,116.86 is: 11,336,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184,461.22 : 20,954,499.05 = 8,215,116.86 : x
  2. Step 2: Convert to fraction form
    15,184,461.22/20,954,499.05 = 8,215,116.86/x
  3. Step 3: Cross multiply
    15,184,461.22x = 20,954,499.05 × 8,215,116.86
  4. Step 4: Simplify right side
    15,184,461.22x = 172,143,658,511,433
  5. Step 5: Solve for x
    x = 172,143,658,511,433/15,184,461.22
  6. Step 6: Final answer
    x = 11,336,830.20

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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.