Home / 74,431,418.40-111,632,414.31-70,740,218.12

Finding the Fourth Proportional to 74,431,418.40, 111,632,414.31 and 70,740,218.12

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Solution

The fourth proportional to 74,431,418.40, 111,632,414.31 and 70,740,218.12 is: 106,096,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431,418.40 : 111,632,414.31 = 70,740,218.12 : x
  2. Step 2: Convert to fraction form
    74,431,418.40/111,632,414.31 = 70,740,218.12/x
  3. Step 3: Cross multiply
    74,431,418.40x = 111,632,414.31 × 70,740,218.12
  4. Step 4: Simplify right side
    74,431,418.40x = 7,896,901,336,993,447
  5. Step 5: Solve for x
    x = 7,896,901,336,993,447/74,431,418.40
  6. Step 6: Final answer
    x = 106,096,343.54

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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.