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Finding the Third Proportional to 8,740,278 and 19,215,090

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Solution

The third proportional to 8,740,278 and 19,215,090 is: 42,243,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740,278 : 19,215,090 = 19,215,090 : x
  2. Step 2: Convert to fraction form
    8,740,278/19,215,090 = 19,215,090/x
  3. Step 3: Cross multiply
    8,740,278x = 19,215,090 × 19,215,090
  4. Step 4: Simplify right side
    8,740,278x = 369,219,683,708,100
  5. Step 5: Solve for x
    x = 369,219,683,708,100/8,740,278
  6. Step 6: Final answer
    x = 42,243,471.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.