Home / 78,474,034.48-117,603,434.91-49,668,751.30

Finding the Fourth Proportional to 78,474,034.48, 117,603,434.91 and 49,668,751.30

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Solution

The fourth proportional to 78,474,034.48, 117,603,434.91 and 49,668,751.30 is: 74,435,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,474,034.48 : 117,603,434.91 = 49,668,751.30 : x
  2. Step 2: Convert to fraction form
    78,474,034.48/117,603,434.91 = 49,668,751.30/x
  3. Step 3: Cross multiply
    78,474,034.48x = 117,603,434.91 × 49,668,751.30
  4. Step 4: Simplify right side
    78,474,034.48x = 5,841,215,760,570,527
  5. Step 5: Solve for x
    x = 5,841,215,760,570,527/78,474,034.48
  6. Step 6: Final answer
    x = 74,435,012.79

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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.