Home / 11,286,905.20-16,930,357.80-8,121,878.80

Finding the Fourth Proportional to 11,286,905.20, 16,930,357.80 and 8,121,878.80

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Solution

The fourth proportional to 11,286,905.20, 16,930,357.80 and 8,121,878.80 is: 12,182,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286,905.20 : 16,930,357.80 = 8,121,878.80 : x
  2. Step 2: Convert to fraction form
    11,286,905.20/16,930,357.80 = 8,121,878.80/x
  3. Step 3: Cross multiply
    11,286,905.20x = 16,930,357.80 × 8,121,878.80
  4. Step 4: Simplify right side
    11,286,905.20x = 137,506,314,092,234.64
  5. Step 5: Solve for x
    x = 137,506,314,092,234.64/11,286,905.20
  6. Step 6: Final answer
    x = 12,182,818.20

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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.