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Finding the Third Proportional to 18,138,995 and 39,466,580.50

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Solution

The third proportional to 18,138,995 and 39,466,580.50 is: 85,870,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,995 : 39,466,580.50 = 39,466,580.50 : x
  2. Step 2: Convert to fraction form
    18,138,995/39,466,580.50 = 39,466,580.50/x
  3. Step 3: Cross multiply
    18,138,995x = 39,466,580.50 × 39,466,580.50
  4. Step 4: Simplify right side
    18,138,995x = 1,557,610,976,362,980.25
  5. Step 5: Solve for x
    x = 1,557,610,976,362,980.25/18,138,995
  6. Step 6: Final answer
    x = 85,870,853.17

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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.