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Finding the Third Proportional to 18,512,280 and 40,208,724

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Solution

The third proportional to 18,512,280 and 40,208,724 is: 87,333,461.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512,280 : 40,208,724 = 40,208,724 : x
  2. Step 2: Convert to fraction form
    18,512,280/40,208,724 = 40,208,724/x
  3. Step 3: Cross multiply
    18,512,280x = 40,208,724 × 40,208,724
  4. Step 4: Simplify right side
    18,512,280x = 1,616,741,485,708,176
  5. Step 5: Solve for x
    x = 1,616,741,485,708,176/18,512,280
  6. Step 6: Final answer
    x = 87,333,461.12

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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.