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Finding the Third Proportional to 28,712,280 and 43,089,420

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Solution

The third proportional to 28,712,280 and 43,089,420 is: 64,665,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712,280 : 43,089,420 = 43,089,420 : x
  2. Step 2: Convert to fraction form
    28,712,280/43,089,420 = 43,089,420/x
  3. Step 3: Cross multiply
    28,712,280x = 43,089,420 × 43,089,420
  4. Step 4: Simplify right side
    28,712,280x = 1,856,698,115,936,400
  5. Step 5: Solve for x
    x = 1,856,698,115,936,400/28,712,280
  6. Step 6: Final answer
    x = 64,665,645.36

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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.