Home / 18,930,654.86-28,398,918.21-8,000,890.49

Finding the Fourth Proportional to 18,930,654.86, 28,398,918.21 and 8,000,890.49

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Solution

The fourth proportional to 18,930,654.86, 28,398,918.21 and 8,000,890.49 is: 12,002,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930,654.86 : 28,398,918.21 = 8,000,890.49 : x
  2. Step 2: Convert to fraction form
    18,930,654.86/28,398,918.21 = 8,000,890.49/x
  3. Step 3: Cross multiply
    18,930,654.86x = 28,398,918.21 × 8,000,890.49
  4. Step 4: Simplify right side
    18,930,654.86x = 227,216,634,632,676.84
  5. Step 5: Solve for x
    x = 227,216,634,632,676.84/18,930,654.86
  6. Step 6: Final answer
    x = 12,002,576.58

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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.