Home / 7,142,496.66-9,856,673.54-3,879,365.84

Finding the Fourth Proportional to 7,142,496.66, 9,856,673.54 and 3,879,365.84

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Solution

The fourth proportional to 7,142,496.66, 9,856,673.54 and 3,879,365.84 is: 5,353,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,496.66 : 9,856,673.54 = 3,879,365.84 : x
  2. Step 2: Convert to fraction form
    7,142,496.66/9,856,673.54 = 3,879,365.84/x
  3. Step 3: Cross multiply
    7,142,496.66x = 9,856,673.54 × 3,879,365.84
  4. Step 4: Simplify right side
    7,142,496.66x = 38,237,642,627,107.87
  5. Step 5: Solve for x
    x = 38,237,642,627,107.87/7,142,496.66
  6. Step 6: Final answer
    x = 5,353,540.15

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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.