Home / 18,936,081.94-28,392,288-8,000,649.40

Finding the Fourth Proportional to 18,936,081.94, 28,392,288 and 8,000,649.40

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Solution

The fourth proportional to 18,936,081.94, 28,392,288 and 8,000,649.40 is: 11,995,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936,081.94 : 28,392,288 = 8,000,649.40 : x
  2. Step 2: Convert to fraction form
    18,936,081.94/28,392,288 = 8,000,649.40/x
  3. Step 3: Cross multiply
    18,936,081.94x = 28,392,288 × 8,000,649.40
  4. Step 4: Simplify right side
    18,936,081.94x = 227,156,741,951,827.22
  5. Step 5: Solve for x
    x = 227,156,741,951,827.22/18,936,081.94
  6. Step 6: Final answer
    x = 11,995,973.75

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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.