Home / 142,189,359.62-213,292,010.99-39,945,425.72

Finding the Fourth Proportional to 142,189,359.62, 213,292,010.99 and 39,945,425.72

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Solution

The fourth proportional to 142,189,359.62, 213,292,010.99 and 39,945,425.72 is: 59,920,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,189,359.62 : 213,292,010.99 = 39,945,425.72 : x
  2. Step 2: Convert to fraction form
    142,189,359.62/213,292,010.99 = 39,945,425.72/x
  3. Step 3: Cross multiply
    142,189,359.62x = 213,292,010.99 × 39,945,425.72
  4. Step 4: Simplify right side
    142,189,359.62x = 8,520,040,180,703,873
  5. Step 5: Solve for x
    x = 8,520,040,180,703,873/142,189,359.62
  6. Step 6: Final answer
    x = 59,920,378.04

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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.