Home / 77,157,793.48-115,717,198.38-28,608,965.32

Finding the Fourth Proportional to 77,157,793.48, 115,717,198.38 and 28,608,965.32

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Solution

The fourth proportional to 77,157,793.48, 115,717,198.38 and 28,608,965.32 is: 42,906,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,157,793.48 : 115,717,198.38 = 28,608,965.32 : x
  2. Step 2: Convert to fraction form
    77,157,793.48/115,717,198.38 = 28,608,965.32/x
  3. Step 3: Cross multiply
    77,157,793.48x = 115,717,198.38 × 28,608,965.32
  4. Step 4: Simplify right side
    77,157,793.48x = 3,310,549,315,380,980
  5. Step 5: Solve for x
    x = 3,310,549,315,380,980/77,157,793.48
  6. Step 6: Final answer
    x = 42,906,220.69

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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.