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Finding the Third Proportional to 78,001,554 and 166,080,804

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Solution

The third proportional to 78,001,554 and 166,080,804 is: 353,619,024.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,001,554 : 166,080,804 = 166,080,804 : x
  2. Step 2: Convert to fraction form
    78,001,554/166,080,804 = 166,080,804/x
  3. Step 3: Cross multiply
    78,001,554x = 166,080,804 × 166,080,804
  4. Step 4: Simplify right side
    78,001,554x = 27,582,833,457,286,416
  5. Step 5: Solve for x
    x = 27,582,833,457,286,416/78,001,554
  6. Step 6: Final answer
    x = 353,619,024.79

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.