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Finding the Third Proportional to 187,980,604 and 287,373,912

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Solution

The third proportional to 187,980,604 and 287,373,912 is: 439,320,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,980,604 : 287,373,912 = 287,373,912 : x
  2. Step 2: Convert to fraction form
    187,980,604/287,373,912 = 287,373,912/x
  3. Step 3: Cross multiply
    187,980,604x = 287,373,912 × 287,373,912
  4. Step 4: Simplify right side
    187,980,604x = 82,583,765,298,183,744
  5. Step 5: Solve for x
    x = 82,583,765,298,183,744/187,980,604
  6. Step 6: Final answer
    x = 439,320,672.14

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.