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Finding the Third Proportional to 21,042,072 and 45,280,080

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Solution

The third proportional to 21,042,072 and 45,280,080 is: 97,437,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,072 : 45,280,080 = 45,280,080 : x
  2. Step 2: Convert to fraction form
    21,042,072/45,280,080 = 45,280,080/x
  3. Step 3: Cross multiply
    21,042,072x = 45,280,080 × 45,280,080
  4. Step 4: Simplify right side
    21,042,072x = 2,050,285,644,806,400
  5. Step 5: Solve for x
    x = 2,050,285,644,806,400/21,042,072
  6. Step 6: Final answer
    x = 97,437,440.80

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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.