Home / 142,759,675.60-196,990,935.06-80,021,294.08

Finding the Fourth Proportional to 142,759,675.60, 196,990,935.06 and 80,021,294.08

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Solution

The fourth proportional to 142,759,675.60, 196,990,935.06 and 80,021,294.08 is: 110,419,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,759,675.60 : 196,990,935.06 = 80,021,294.08 : x
  2. Step 2: Convert to fraction form
    142,759,675.60/196,990,935.06 = 80,021,294.08/x
  3. Step 3: Cross multiply
    142,759,675.60x = 196,990,935.06 × 80,021,294.08
  4. Step 4: Simplify right side
    142,759,675.60x = 15,763,469,545,530,442
  5. Step 5: Solve for x
    x = 15,763,469,545,530,442/142,759,675.60
  6. Step 6: Final answer
    x = 110,419,622.90

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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.