Home / 15,166,181.63-20,929,469.91-8,639,714.36

Finding the Fourth Proportional to 15,166,181.63, 20,929,469.91 and 8,639,714.36

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Solution

The fourth proportional to 15,166,181.63, 20,929,469.91 and 8,639,714.36 is: 11,922,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,166,181.63 : 20,929,469.91 = 8,639,714.36 : x
  2. Step 2: Convert to fraction form
    15,166,181.63/20,929,469.91 = 8,639,714.36/x
  3. Step 3: Cross multiply
    15,166,181.63x = 20,929,469.91 × 8,639,714.36
  4. Step 4: Simplify right side
    15,166,181.63x = 180,824,641,728,614.91
  5. Step 5: Solve for x
    x = 180,824,641,728,614.91/15,166,181.63
  6. Step 6: Final answer
    x = 11,922,885.15

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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.