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Finding the Fourth Proportional to 13,047,763.62, 18,004,859.88 and 7,541,494.98

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Solution

The fourth proportional to 13,047,763.62, 18,004,859.88 and 7,541,494.98 is: 10,406,653.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047,763.62 : 18,004,859.88 = 7,541,494.98 : x
  2. Step 2: Convert to fraction form
    13,047,763.62/18,004,859.88 = 7,541,494.98/x
  3. Step 3: Cross multiply
    13,047,763.62x = 18,004,859.88 × 7,541,494.98
  4. Step 4: Simplify right side
    13,047,763.62x = 135,783,560,400,623.41
  5. Step 5: Solve for x
    x = 135,783,560,400,623.41/13,047,763.62
  6. Step 6: Final answer
    x = 10,406,653.92

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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.