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Finding the Fourth Proportional to 13,479,702.80, 20,177,563.80 and 9,700,566.80

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Solution

The fourth proportional to 13,479,702.80, 20,177,563.80 and 9,700,566.80 is: 14,520,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,702.80 : 20,177,563.80 = 9,700,566.80 : x
  2. Step 2: Convert to fraction form
    13,479,702.80/20,177,563.80 = 9,700,566.80/x
  3. Step 3: Cross multiply
    13,479,702.80x = 20,177,563.80 × 9,700,566.80
  4. Step 4: Simplify right side
    13,479,702.80x = 195,733,805,503,161.88
  5. Step 5: Solve for x
    x = 195,733,805,503,161.88/13,479,702.80
  6. Step 6: Final answer
    x = 14,520,632.12

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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.