Home / 13,268,713.53-18,316,474.44-8,920,321.89

Finding the Fourth Proportional to 13,268,713.53, 18,316,474.44 and 8,920,321.89

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Solution

The fourth proportional to 13,268,713.53, 18,316,474.44 and 8,920,321.89 is: 12,313,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268,713.53 : 18,316,474.44 = 8,920,321.89 : x
  2. Step 2: Convert to fraction form
    13,268,713.53/18,316,474.44 = 8,920,321.89/x
  3. Step 3: Cross multiply
    13,268,713.53x = 18,316,474.44 × 8,920,321.89
  4. Step 4: Simplify right side
    13,268,713.53x = 163,388,847,894,757.50
  5. Step 5: Solve for x
    x = 163,388,847,894,757.50/13,268,713.53
  6. Step 6: Final answer
    x = 12,313,842.45

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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.