Home / 64,158,857.78-96,199,853.52-20,420,723.54

Finding the Fourth Proportional to 64,158,857.78, 96,199,853.52 and 20,420,723.54

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Solution

The fourth proportional to 64,158,857.78, 96,199,853.52 and 20,420,723.54 is: 30,618,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,158,857.78 : 96,199,853.52 = 20,420,723.54 : x
  2. Step 2: Convert to fraction form
    64,158,857.78/96,199,853.52 = 20,420,723.54/x
  3. Step 3: Cross multiply
    64,158,857.78x = 96,199,853.52 × 20,420,723.54
  4. Step 4: Simplify right side
    64,158,857.78x = 1,964,470,613,320,415.75
  5. Step 5: Solve for x
    x = 1,964,470,613,320,415.75/64,158,857.78
  6. Step 6: Final answer
    x = 30,618,852.66

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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.