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Finding the Third Proportional to 91,537,400 and 138,157,349

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Solution

The third proportional to 91,537,400 and 138,157,349 is: 208,520,813.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,537,400 : 138,157,349 = 138,157,349 : x
  2. Step 2: Convert to fraction form
    91,537,400/138,157,349 = 138,157,349/x
  3. Step 3: Cross multiply
    91,537,400x = 138,157,349 × 138,157,349
  4. Step 4: Simplify right side
    91,537,400x = 19,087,453,082,707,800
  5. Step 5: Solve for x
    x = 19,087,453,082,707,800/91,537,400
  6. Step 6: Final answer
    x = 208,520,813.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.