Home / 16,691,856.30-25,037,784.45-12,387,184.20

Finding the Fourth Proportional to 16,691,856.30, 25,037,784.45 and 12,387,184.20

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Solution

The fourth proportional to 16,691,856.30, 25,037,784.45 and 12,387,184.20 is: 18,580,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691,856.30 : 25,037,784.45 = 12,387,184.20 : x
  2. Step 2: Convert to fraction form
    16,691,856.30/25,037,784.45 = 12,387,184.20/x
  3. Step 3: Cross multiply
    16,691,856.30x = 25,037,784.45 × 12,387,184.20
  4. Step 4: Simplify right side
    16,691,856.30x = 310,147,647,942,045.69
  5. Step 5: Solve for x
    x = 310,147,647,942,045.69/16,691,856.30
  6. Step 6: Final answer
    x = 18,580,776.30

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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.