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Finding the Third Proportional to 79,155,789 and 121,087,692

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Solution

The third proportional to 79,155,789 and 121,087,692 is: 185,232,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,155,789 : 121,087,692 = 121,087,692 : x
  2. Step 2: Convert to fraction form
    79,155,789/121,087,692 = 121,087,692/x
  3. Step 3: Cross multiply
    79,155,789x = 121,087,692 × 121,087,692
  4. Step 4: Simplify right side
    79,155,789x = 14,662,229,153,886,864
  5. Step 5: Solve for x
    x = 14,662,229,153,886,864/79,155,789
  6. Step 6: Final answer
    x = 185,232,556.44

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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.