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Finding the Third Proportional to 139,835,330 and 211,695,538

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Solution

The third proportional to 139,835,330 and 211,695,538 is: 320,484,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,835,330 : 211,695,538 = 211,695,538 : x
  2. Step 2: Convert to fraction form
    139,835,330/211,695,538 = 211,695,538/x
  3. Step 3: Cross multiply
    139,835,330x = 211,695,538 × 211,695,538
  4. Step 4: Simplify right side
    139,835,330x = 44,815,000,809,109,440
  5. Step 5: Solve for x
    x = 44,815,000,809,109,440/139,835,330
  6. Step 6: Final answer
    x = 320,484,106.62

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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.