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Finding the Third Proportional to 21,042,078 and 45,280,092

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Solution

The third proportional to 21,042,078 and 45,280,092 is: 97,437,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,078 : 45,280,092 = 45,280,092 : x
  2. Step 2: Convert to fraction form
    21,042,078/45,280,092 = 45,280,092/x
  3. Step 3: Cross multiply
    21,042,078x = 45,280,092 × 45,280,092
  4. Step 4: Simplify right side
    21,042,078x = 2,050,286,731,528,464
  5. Step 5: Solve for x
    x = 2,050,286,731,528,464/21,042,078
  6. Step 6: Final answer
    x = 97,437,464.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.