Home / 15,376,451.37-21,219,540.90-8,407,579.11

Finding the Fourth Proportional to 15,376,451.37, 21,219,540.90 and 8,407,579.11

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Solution

The fourth proportional to 15,376,451.37, 21,219,540.90 and 8,407,579.11 is: 11,602,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376,451.37 : 21,219,540.90 = 8,407,579.11 : x
  2. Step 2: Convert to fraction form
    15,376,451.37/21,219,540.90 = 8,407,579.11/x
  3. Step 3: Cross multiply
    15,376,451.37x = 21,219,540.90 × 8,407,579.11
  4. Step 4: Simplify right side
    15,376,451.37x = 178,404,968,794,630.56
  5. Step 5: Solve for x
    x = 178,404,968,794,630.56/15,376,451.37
  6. Step 6: Final answer
    x = 11,602,479.95

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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.