Home / 78,246,234.78-117,216,670.41-51,238,009.50

Finding the Fourth Proportional to 78,246,234.78, 117,216,670.41 and 51,238,009.50

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Solution

The fourth proportional to 78,246,234.78, 117,216,670.41 and 51,238,009.50 is: 76,757,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,246,234.78 : 117,216,670.41 = 51,238,009.50 : x
  2. Step 2: Convert to fraction form
    78,246,234.78/117,216,670.41 = 51,238,009.50/x
  3. Step 3: Cross multiply
    78,246,234.78x = 117,216,670.41 × 51,238,009.50
  4. Step 4: Simplify right side
    78,246,234.78x = 6,005,948,872,025,949
  5. Step 5: Solve for x
    x = 6,005,948,872,025,949/78,246,234.78
  6. Step 6: Final answer
    x = 76,757,033.60

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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.