Home / 81,973,099,229.28-122,962,370,638.56-28,189,707,169.92

Finding the Fourth Proportional to 81,973,099,229.28, 122,962,370,638.56 and 28,189,707,169.92

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Solution

The fourth proportional to 81,973,099,229.28, 122,962,370,638.56 and 28,189,707,169.92 is: 42,285,496,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,973,099,229.28 : 122,962,370,638.56 = 28,189,707,169.92 : x
  2. Step 2: Convert to fraction form
    81,973,099,229.28/122,962,370,638.56 = 28,189,707,169.92/x
  3. Step 3: Cross multiply
    81,973,099,229.28x = 122,962,370,638.56 × 28,189,707,169.92
  4. Step 4: Simplify right side
    81,973,099,229.28x = 3,466,273,221,220,174,921,728
  5. Step 5: Solve for x
    x = 3,466,273,221,220,174,921,728/81,973,099,229.28
  6. Step 6: Final answer
    x = 42,285,496,752.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.