Home / 7,208,287.18-9,947,462.64-3,900,581.42

Finding the Fourth Proportional to 7,208,287.18, 9,947,462.64 and 3,900,581.42

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Solution

The fourth proportional to 7,208,287.18, 9,947,462.64 and 3,900,581.42 is: 5,382,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208,287.18 : 9,947,462.64 = 3,900,581.42 : x
  2. Step 2: Convert to fraction form
    7,208,287.18/9,947,462.64 = 3,900,581.42/x
  3. Step 3: Cross multiply
    7,208,287.18x = 9,947,462.64 × 3,900,581.42
  4. Step 4: Simplify right side
    7,208,287.18x = 38,800,887,949,728.15
  5. Step 5: Solve for x
    x = 38,800,887,949,728.15/7,208,287.18
  6. Step 6: Final answer
    x = 5,382,816.61

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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.