Home / 78,972,045.72-118,433,932.19-27,842,107.11

Finding the Fourth Proportional to 78,972,045.72, 118,433,932.19 and 27,842,107.11

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Solution

The fourth proportional to 78,972,045.72, 118,433,932.19 and 27,842,107.11 is: 41,754,651.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,972,045.72 : 118,433,932.19 = 27,842,107.11 : x
  2. Step 2: Convert to fraction form
    78,972,045.72/118,433,932.19 = 27,842,107.11/x
  3. Step 3: Cross multiply
    78,972,045.72x = 118,433,932.19 × 27,842,107.11
  4. Step 4: Simplify right side
    78,972,045.72x = 3,297,450,225,353,246.50
  5. Step 5: Solve for x
    x = 3,297,450,225,353,246.50/78,972,045.72
  6. Step 6: Final answer
    x = 41,754,651.22

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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.