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Finding the Third Proportional to 79,289,905 and 171,808,628

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Solution

The third proportional to 79,289,905 and 171,808,628 is: 372,282,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,289,905 : 171,808,628 = 171,808,628 : x
  2. Step 2: Convert to fraction form
    79,289,905/171,808,628 = 171,808,628/x
  3. Step 3: Cross multiply
    79,289,905x = 171,808,628 × 171,808,628
  4. Step 4: Simplify right side
    79,289,905x = 29,518,204,655,242,384
  5. Step 5: Solve for x
    x = 29,518,204,655,242,384/79,289,905
  6. Step 6: Final answer
    x = 372,282,003.05

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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.