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Finding the Third Proportional to 4,938,489 and 7,420,855.50

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Solution

The third proportional to 4,938,489 and 7,420,855.50 is: 11,151,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938,489 : 7,420,855.50 = 7,420,855.50 : x
  2. Step 2: Convert to fraction form
    4,938,489/7,420,855.50 = 7,420,855.50/x
  3. Step 3: Cross multiply
    4,938,489x = 7,420,855.50 × 7,420,855.50
  4. Step 4: Simplify right side
    4,938,489x = 55,069,096,351,880.25
  5. Step 5: Solve for x
    x = 55,069,096,351,880.25/4,938,489
  6. Step 6: Final answer
    x = 11,151,001.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.