Home / 78,474,033.48-117,603,433.42-49,668,750.30

Finding the Fourth Proportional to 78,474,033.48, 117,603,433.42 and 49,668,750.30

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Solution

The fourth proportional to 78,474,033.48, 117,603,433.42 and 49,668,750.30 is: 74,435,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,474,033.48 : 117,603,433.42 = 49,668,750.30 : x
  2. Step 2: Convert to fraction form
    78,474,033.48/117,603,433.42 = 49,668,750.30/x
  3. Step 3: Cross multiply
    78,474,033.48x = 117,603,433.42 × 49,668,750.30
  4. Step 4: Simplify right side
    78,474,033.48x = 5,841,215,568,712,311
  5. Step 5: Solve for x
    x = 5,841,215,568,712,311/78,474,033.48
  6. Step 6: Final answer
    x = 74,435,011.30

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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.