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Finding the Third Proportional to 18,970,650 and 40,818,549.38

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Solution

The third proportional to 18,970,650 and 40,818,549.38 is: 87,827,985.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970,650 : 40,818,549.38 = 40,818,549.38 : x
  2. Step 2: Convert to fraction form
    18,970,650/40,818,549.38 = 40,818,549.38/x
  3. Step 3: Cross multiply
    18,970,650x = 40,818,549.38 × 40,818,549.38
  4. Step 4: Simplify right side
    18,970,650x = 1,666,153,973,079,313
  5. Step 5: Solve for x
    x = 1,666,153,973,079,313/18,970,650
  6. Step 6: Final answer
    x = 87,827,985.50

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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.