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Finding the Third Proportional to 18,618,570 and 28,902,172.50

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Solution

The third proportional to 18,618,570 and 28,902,172.50 is: 44,865,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618,570 : 28,902,172.50 = 28,902,172.50 : x
  2. Step 2: Convert to fraction form
    18,618,570/28,902,172.50 = 28,902,172.50/x
  3. Step 3: Cross multiply
    18,618,570x = 28,902,172.50 × 28,902,172.50
  4. Step 4: Simplify right side
    18,618,570x = 835,335,575,219,756.25
  5. Step 5: Solve for x
    x = 835,335,575,219,756.25/18,618,570
  6. Step 6: Final answer
    x = 44,865,721.44

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.