Home / 7,216,321.72-9,956,180.82-4,920,496.60

Finding the Fourth Proportional to 7,216,321.72, 9,956,180.82 and 4,920,496.60

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Solution

The fourth proportional to 7,216,321.72, 9,956,180.82 and 4,920,496.60 is: 6,788,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216,321.72 : 9,956,180.82 = 4,920,496.60 : x
  2. Step 2: Convert to fraction form
    7,216,321.72/9,956,180.82 = 4,920,496.60/x
  3. Step 3: Cross multiply
    7,216,321.72x = 9,956,180.82 × 4,920,496.60
  4. Step 4: Simplify right side
    7,216,321.72x = 48,989,353,873,795.21
  5. Step 5: Solve for x
    x = 48,989,353,873,795.21/7,216,321.72
  6. Step 6: Final answer
    x = 6,788,687.61

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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.