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Finding the Third Proportional to 18,867,965.50 and 40,426,763

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Solution

The third proportional to 18,867,965.50 and 40,426,763 is: 86,618,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867,965.50 : 40,426,763 = 40,426,763 : x
  2. Step 2: Convert to fraction form
    18,867,965.50/40,426,763 = 40,426,763/x
  3. Step 3: Cross multiply
    18,867,965.50x = 40,426,763 × 40,426,763
  4. Step 4: Simplify right side
    18,867,965.50x = 1,634,323,166,658,169
  5. Step 5: Solve for x
    x = 1,634,323,166,658,169/18,867,965.50
  6. Step 6: Final answer
    x = 86,618,939.74

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.