Home / 82,872,020.75-124,273,829.97-28,289,002.73

Finding the Fourth Proportional to 82,872,020.75, 124,273,829.97 and 28,289,002.73

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Solution

The fourth proportional to 82,872,020.75, 124,273,829.97 and 28,289,002.73 is: 42,421,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,872,020.75 : 124,273,829.97 = 28,289,002.73 : x
  2. Step 2: Convert to fraction form
    82,872,020.75/124,273,829.97 = 28,289,002.73/x
  3. Step 3: Cross multiply
    82,872,020.75x = 124,273,829.97 × 28,289,002.73
  4. Step 4: Simplify right side
    82,872,020.75x = 3,515,582,714,667,517
  5. Step 5: Solve for x
    x = 3,515,582,714,667,517/82,872,020.75
  6. Step 6: Final answer
    x = 42,421,829.26

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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.