Home / 142,759,676.10-196,990,935.75-80,021,294.58

Finding the Fourth Proportional to 142,759,676.10, 196,990,935.75 and 80,021,294.58

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Solution

The fourth proportional to 142,759,676.10, 196,990,935.75 and 80,021,294.58 is: 110,419,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,759,676.10 : 196,990,935.75 = 80,021,294.58 : x
  2. Step 2: Convert to fraction form
    142,759,676.10/196,990,935.75 = 80,021,294.58/x
  3. Step 3: Cross multiply
    142,759,676.10x = 196,990,935.75 × 80,021,294.58
  4. Step 4: Simplify right side
    142,759,676.10x = 15,763,469,699,240,602
  5. Step 5: Solve for x
    x = 15,763,469,699,240,602/142,759,676.10
  6. Step 6: Final answer
    x = 110,419,623.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.