Home / 18,678,615.20-27,991,585.84-8,820,159.88

Finding the Fourth Proportional to 18,678,615.20, 27,991,585.84 and 8,820,159.88

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Solution

The fourth proportional to 18,678,615.20, 27,991,585.84 and 8,820,159.88 is: 13,217,803.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678,615.20 : 27,991,585.84 = 8,820,159.88 : x
  2. Step 2: Convert to fraction form
    18,678,615.20/27,991,585.84 = 8,820,159.88/x
  3. Step 3: Cross multiply
    18,678,615.20x = 27,991,585.84 × 8,820,159.88
  4. Step 4: Simplify right side
    18,678,615.20x = 246,890,262,403,544.12
  5. Step 5: Solve for x
    x = 246,890,262,403,544.12/18,678,615.20
  6. Step 6: Final answer
    x = 13,217,803.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.