Home / 77,682,656.86-107,242,418.35-56,751,188.77

Finding the Fourth Proportional to 77,682,656.86, 107,242,418.35 and 56,751,188.77

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Solution

The fourth proportional to 77,682,656.86, 107,242,418.35 and 56,751,188.77 is: 78,346,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,682,656.86 : 107,242,418.35 = 56,751,188.77 : x
  2. Step 2: Convert to fraction form
    77,682,656.86/107,242,418.35 = 56,751,188.77/x
  3. Step 3: Cross multiply
    77,682,656.86x = 107,242,418.35 × 56,751,188.77
  4. Step 4: Simplify right side
    77,682,656.86x = 6,086,134,728,192,443
  5. Step 5: Solve for x
    x = 6,086,134,728,192,443/77,682,656.86
  6. Step 6: Final answer
    x = 78,346,119.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.