Home / 12,896,786.40-19,357,621.20-6,514,245.60

Finding the Fourth Proportional to 12,896,786.40, 19,357,621.20 and 6,514,245.60

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Solution

The fourth proportional to 12,896,786.40, 19,357,621.20 and 6,514,245.60 is: 9,777,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896,786.40 : 19,357,621.20 = 6,514,245.60 : x
  2. Step 2: Convert to fraction form
    12,896,786.40/19,357,621.20 = 6,514,245.60/x
  3. Step 3: Cross multiply
    12,896,786.40x = 19,357,621.20 × 6,514,245.60
  4. Step 4: Simplify right side
    12,896,786.40x = 126,100,298,728,566.70
  5. Step 5: Solve for x
    x = 126,100,298,728,566.70/12,896,786.40
  6. Step 6: Final answer
    x = 9,777,652.73

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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.