Home / 13,458,022.76-18,571,831.80-7,656,679.64

Finding the Fourth Proportional to 13,458,022.76, 18,571,831.80 and 7,656,679.64

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Solution

The fourth proportional to 13,458,022.76, 18,571,831.80 and 7,656,679.64 is: 10,566,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458,022.76 : 18,571,831.80 = 7,656,679.64 : x
  2. Step 2: Convert to fraction form
    13,458,022.76/18,571,831.80 = 7,656,679.64/x
  3. Step 3: Cross multiply
    13,458,022.76x = 18,571,831.80 × 7,656,679.64
  4. Step 4: Simplify right side
    13,458,022.76x = 142,198,566,420,564.56
  5. Step 5: Solve for x
    x = 142,198,566,420,564.56/13,458,022.76
  6. Step 6: Final answer
    x = 10,566,081.58

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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.