Home / 18,717,662.23-28,073,872.08-6,421,421.48

Finding the Fourth Proportional to 18,717,662.23, 28,073,872.08 and 6,421,421.48

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Solution

The fourth proportional to 18,717,662.23, 28,073,872.08 and 6,421,421.48 is: 9,631,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,662.23 : 28,073,872.08 = 6,421,421.48 : x
  2. Step 2: Convert to fraction form
    18,717,662.23/28,073,872.08 = 6,421,421.48/x
  3. Step 3: Cross multiply
    18,717,662.23x = 28,073,872.08 × 6,421,421.48
  4. Step 4: Simplify right side
    18,717,662.23x = 180,274,165,201,284.28
  5. Step 5: Solve for x
    x = 180,274,165,201,284.28/18,717,662.23
  6. Step 6: Final answer
    x = 9,631,232.95

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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.