Home / 18,912,877.20-28,369,315.80-11,260,126.80

Finding the Fourth Proportional to 18,912,877.20, 28,369,315.80 and 11,260,126.80

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Solution

The fourth proportional to 18,912,877.20, 28,369,315.80 and 11,260,126.80 is: 16,890,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912,877.20 : 28,369,315.80 = 11,260,126.80 : x
  2. Step 2: Convert to fraction form
    18,912,877.20/28,369,315.80 = 11,260,126.80/x
  3. Step 3: Cross multiply
    18,912,877.20x = 28,369,315.80 × 11,260,126.80
  4. Step 4: Simplify right side
    18,912,877.20x = 319,442,093,137,243.50
  5. Step 5: Solve for x
    x = 319,442,093,137,243.50/18,912,877.20
  6. Step 6: Final answer
    x = 16,890,190.20

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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.