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Finding the Third Proportional to 18,403,210 and 38,710,216

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Solution

The third proportional to 18,403,210 and 38,710,216 is: 81,424,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403,210 : 38,710,216 = 38,710,216 : x
  2. Step 2: Convert to fraction form
    18,403,210/38,710,216 = 38,710,216/x
  3. Step 3: Cross multiply
    18,403,210x = 38,710,216 × 38,710,216
  4. Step 4: Simplify right side
    18,403,210x = 1,498,480,822,766,656
  5. Step 5: Solve for x
    x = 1,498,480,822,766,656/18,403,210
  6. Step 6: Final answer
    x = 81,424,970.03

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.