Home / 142,738,508.90-196,988,888.90-80,859,355.94

Finding the Fourth Proportional to 142,738,508.90, 196,988,888.90 and 80,859,355.94

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Solution

The fourth proportional to 142,738,508.90, 196,988,888.90 and 80,859,355.94 is: 111,591,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,738,508.90 : 196,988,888.90 = 80,859,355.94 : x
  2. Step 2: Convert to fraction form
    142,738,508.90/196,988,888.90 = 80,859,355.94/x
  3. Step 3: Cross multiply
    142,738,508.90x = 196,988,888.90 × 80,859,355.94
  4. Step 4: Simplify right side
    142,738,508.90x = 15,928,394,683,790,216
  5. Step 5: Solve for x
    x = 15,928,394,683,790,216/142,738,508.90
  6. Step 6: Final answer
    x = 111,591,432.52

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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.