Home / 86,528,249.28-119,489,924.52-55,642,080.96

Finding the Fourth Proportional to 86,528,249.28, 119,489,924.52 and 55,642,080.96

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Solution

The fourth proportional to 86,528,249.28, 119,489,924.52 and 55,642,080.96 is: 76,838,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,528,249.28 : 119,489,924.52 = 55,642,080.96 : x
  2. Step 2: Convert to fraction form
    86,528,249.28/119,489,924.52 = 55,642,080.96/x
  3. Step 3: Cross multiply
    86,528,249.28x = 119,489,924.52 × 55,642,080.96
  4. Step 4: Simplify right side
    86,528,249.28x = 6,648,668,054,046,129
  5. Step 5: Solve for x
    x = 6,648,668,054,046,129/86,528,249.28
  6. Step 6: Final answer
    x = 76,838,120.61

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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.