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Finding the Third Proportional to 40,242,717 and 87,290,824.50

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Solution

The third proportional to 40,242,717 and 87,290,824.50 is: 189,343,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,242,717 : 87,290,824.50 = 87,290,824.50 : x
  2. Step 2: Convert to fraction form
    40,242,717/87,290,824.50 = 87,290,824.50/x
  3. Step 3: Cross multiply
    40,242,717x = 87,290,824.50 × 87,290,824.50
  4. Step 4: Simplify right side
    40,242,717x = 7,619,688,041,889,800
  5. Step 5: Solve for x
    x = 7,619,688,041,889,800/40,242,717
  6. Step 6: Final answer
    x = 189,343,280.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.