Home / 13,696,516.76-18,900,831.38-7,816,045.54

Finding the Fourth Proportional to 13,696,516.76, 18,900,831.38 and 7,816,045.54

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Solution

The fourth proportional to 13,696,516.76, 18,900,831.38 and 7,816,045.54 is: 10,785,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696,516.76 : 18,900,831.38 = 7,816,045.54 : x
  2. Step 2: Convert to fraction form
    13,696,516.76/18,900,831.38 = 7,816,045.54/x
  3. Step 3: Cross multiply
    13,696,516.76x = 18,900,831.38 × 7,816,045.54
  4. Step 4: Simplify right side
    13,696,516.76x = 147,729,758,809,941.03
  5. Step 5: Solve for x
    x = 147,729,758,809,941.03/13,696,516.76
  6. Step 6: Final answer
    x = 10,785,936.41

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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.