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Finding the Third Proportional to 30,378,972 and 61,886,040

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Solution

The third proportional to 30,378,972 and 61,886,040 is: 126,070,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378,972 : 61,886,040 = 61,886,040 : x
  2. Step 2: Convert to fraction form
    30,378,972/61,886,040 = 61,886,040/x
  3. Step 3: Cross multiply
    30,378,972x = 61,886,040 × 61,886,040
  4. Step 4: Simplify right side
    30,378,972x = 3,829,881,946,881,600
  5. Step 5: Solve for x
    x = 3,829,881,946,881,600/30,378,972
  6. Step 6: Final answer
    x = 126,070,162.84

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.