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Finding the Third Proportional to 9,918,818 and 15,320,210

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Solution

The third proportional to 9,918,818 and 15,320,210 is: 23,662,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918,818 : 15,320,210 = 15,320,210 : x
  2. Step 2: Convert to fraction form
    9,918,818/15,320,210 = 15,320,210/x
  3. Step 3: Cross multiply
    9,918,818x = 15,320,210 × 15,320,210
  4. Step 4: Simplify right side
    9,918,818x = 234,708,834,444,100
  5. Step 5: Solve for x
    x = 234,708,834,444,100/9,918,818
  6. Step 6: Final answer
    x = 23,662,984.28

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.