Home / 13,720,481.52-18,933,980.04-8,492,102.16

Finding the Fourth Proportional to 13,720,481.52, 18,933,980.04 and 8,492,102.16

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Solution

The fourth proportional to 13,720,481.52, 18,933,980.04 and 8,492,102.16 is: 11,718,924.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720,481.52 : 18,933,980.04 = 8,492,102.16 : x
  2. Step 2: Convert to fraction form
    13,720,481.52/18,933,980.04 = 8,492,102.16/x
  3. Step 3: Cross multiply
    13,720,481.52x = 18,933,980.04 × 8,492,102.16
  4. Step 4: Simplify right side
    13,720,481.52x = 160,789,292,795,080.88
  5. Step 5: Solve for x
    x = 160,789,292,795,080.88/13,720,481.52
  6. Step 6: Final answer
    x = 11,718,924.92

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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.