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Finding the Third Proportional to 18,818,148 and 40,822,728

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Solution

The third proportional to 18,818,148 and 40,822,728 is: 88,557,870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818,148 : 40,822,728 = 40,822,728 : x
  2. Step 2: Convert to fraction form
    18,818,148/40,822,728 = 40,822,728/x
  3. Step 3: Cross multiply
    18,818,148x = 40,822,728 × 40,822,728
  4. Step 4: Simplify right side
    18,818,148x = 1,666,495,121,361,984
  5. Step 5: Solve for x
    x = 1,666,495,121,361,984/18,818,148
  6. Step 6: Final answer
    x = 88,557,870.91

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.