Home / 10,287,326.40-15,431,831.04-5,167,123.52

Finding the Fourth Proportional to 10,287,326.40, 15,431,831.04 and 5,167,123.52

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Solution

The fourth proportional to 10,287,326.40, 15,431,831.04 and 5,167,123.52 is: 7,751,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287,326.40 : 15,431,831.04 = 5,167,123.52 : x
  2. Step 2: Convert to fraction form
    10,287,326.40/15,431,831.04 = 5,167,123.52/x
  3. Step 3: Cross multiply
    10,287,326.40x = 15,431,831.04 × 5,167,123.52
  4. Step 4: Simplify right side
    10,287,326.40x = 79,738,177,123,450.05
  5. Step 5: Solve for x
    x = 79,738,177,123,450.05/10,287,326.40
  6. Step 6: Final answer
    x = 7,751,107.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.