Home / 74,629,570.70-111,944,356.05-68,172,562.55

Finding the Fourth Proportional to 74,629,570.70, 111,944,356.05 and 68,172,562.55

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Solution

The fourth proportional to 74,629,570.70, 111,944,356.05 and 68,172,562.55 is: 102,258,843.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,629,570.70 : 111,944,356.05 = 68,172,562.55 : x
  2. Step 2: Convert to fraction form
    74,629,570.70/111,944,356.05 = 68,172,562.55/x
  3. Step 3: Cross multiply
    74,629,570.70x = 111,944,356.05 × 68,172,562.55
  4. Step 4: Simplify right side
    74,629,570.70x = 7,631,533,614,938,095
  5. Step 5: Solve for x
    x = 7,631,533,614,938,095/74,629,570.70
  6. Step 6: Final answer
    x = 102,258,843.83

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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.