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Finding the Third Proportional to 8,642,382.75 and 18,879,331.50

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Solution

The third proportional to 8,642,382.75 and 18,879,331.50 is: 41,242,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,382.75 : 18,879,331.50 = 18,879,331.50 : x
  2. Step 2: Convert to fraction form
    8,642,382.75/18,879,331.50 = 18,879,331.50/x
  3. Step 3: Cross multiply
    8,642,382.75x = 18,879,331.50 × 18,879,331.50
  4. Step 4: Simplify right side
    8,642,382.75x = 356,429,157,886,892.25
  5. Step 5: Solve for x
    x = 356,429,157,886,892.25/8,642,382.75
  6. Step 6: Final answer
    x = 41,242,000.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.