Home / 20,808,168.48-28,714,623.84-11,515,179.36

Finding the Fourth Proportional to 20,808,168.48, 28,714,623.84 and 11,515,179.36

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Solution

The fourth proportional to 20,808,168.48, 28,714,623.84 and 11,515,179.36 is: 15,890,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,168.48 : 28,714,623.84 = 11,515,179.36 : x
  2. Step 2: Convert to fraction form
    20,808,168.48/28,714,623.84 = 11,515,179.36/x
  3. Step 3: Cross multiply
    20,808,168.48x = 28,714,623.84 × 11,515,179.36
  4. Step 4: Simplify right side
    20,808,168.48x = 330,654,043,772,531.94
  5. Step 5: Solve for x
    x = 330,654,043,772,531.94/20,808,168.48
  6. Step 6: Final answer
    x = 15,890,588.55

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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.