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Finding the Third Proportional to 18,719,464.50 and 40,232,821.50

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Solution

The third proportional to 18,719,464.50 and 40,232,821.50 is: 86,470,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719,464.50 : 40,232,821.50 = 40,232,821.50 : x
  2. Step 2: Convert to fraction form
    18,719,464.50/40,232,821.50 = 40,232,821.50/x
  3. Step 3: Cross multiply
    18,719,464.50x = 40,232,821.50 × 40,232,821.50
  4. Step 4: Simplify right side
    18,719,464.50x = 1,618,679,925,850,862.25
  5. Step 5: Solve for x
    x = 1,618,679,925,850,862.25/18,719,464.50
  6. Step 6: Final answer
    x = 86,470,418.31

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.