Home / 13,696,512.76-18,900,825.86-7,816,041.54

Finding the Fourth Proportional to 13,696,512.76, 18,900,825.86 and 7,816,041.54

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Solution

The fourth proportional to 13,696,512.76, 18,900,825.86 and 7,816,041.54 is: 10,785,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696,512.76 : 18,900,825.86 = 7,816,041.54 : x
  2. Step 2: Convert to fraction form
    13,696,512.76/18,900,825.86 = 7,816,041.54/x
  3. Step 3: Cross multiply
    13,696,512.76x = 18,900,825.86 × 7,816,041.54
  4. Step 4: Simplify right side
    13,696,512.76x = 147,729,640,062,066.22
  5. Step 5: Solve for x
    x = 147,729,640,062,066.22/13,696,512.76
  6. Step 6: Final answer
    x = 10,785,930.89

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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.