Home / 77,275,317.20-115,987,625.40-47,042,229.20

Finding the Fourth Proportional to 77,275,317.20, 115,987,625.40 and 47,042,229.20

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Solution

The fourth proportional to 77,275,317.20, 115,987,625.40 and 47,042,229.20 is: 70,608,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,275,317.20 : 115,987,625.40 = 47,042,229.20 : x
  2. Step 2: Convert to fraction form
    77,275,317.20/115,987,625.40 = 47,042,229.20/x
  3. Step 3: Cross multiply
    77,275,317.20x = 115,987,625.40 × 47,042,229.20
  4. Step 4: Simplify right side
    77,275,317.20x = 5,456,316,458,430,542
  5. Step 5: Solve for x
    x = 5,456,316,458,430,542/77,275,317.20
  6. Step 6: Final answer
    x = 70,608,787.59

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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.