Home / 15,188,654.64-20,960,343.44-8,313,136.72

Finding the Fourth Proportional to 15,188,654.64, 20,960,343.44 and 8,313,136.72

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Solution

The fourth proportional to 15,188,654.64, 20,960,343.44 and 8,313,136.72 is: 11,472,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188,654.64 : 20,960,343.44 = 8,313,136.72 : x
  2. Step 2: Convert to fraction form
    15,188,654.64/20,960,343.44 = 8,313,136.72/x
  3. Step 3: Cross multiply
    15,188,654.64x = 20,960,343.44 × 8,313,136.72
  4. Step 4: Simplify right side
    15,188,654.64x = 174,246,200,714,875.12
  5. Step 5: Solve for x
    x = 174,246,200,714,875.12/15,188,654.64
  6. Step 6: Final answer
    x = 11,472,128.69

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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.