Home / 12,487,872.20-18,722,477.10-6,814,502.60

Finding the Fourth Proportional to 12,487,872.20, 18,722,477.10 and 6,814,502.60

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Solution

The fourth proportional to 12,487,872.20, 18,722,477.10 and 6,814,502.60 is: 10,216,661.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,872.20 : 18,722,477.10 = 6,814,502.60 : x
  2. Step 2: Convert to fraction form
    12,487,872.20/18,722,477.10 = 6,814,502.60/x
  3. Step 3: Cross multiply
    12,487,872.20x = 18,722,477.10 × 6,814,502.60
  4. Step 4: Simplify right side
    12,487,872.20x = 127,584,368,876,390.47
  5. Step 5: Solve for x
    x = 127,584,368,876,390.47/12,487,872.20
  6. Step 6: Final answer
    x = 10,216,661.96

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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.