Home / 86,305,145.13-129,458,839.64-28,797,416.37

Finding the Fourth Proportional to 86,305,145.13, 129,458,839.64 and 28,797,416.37

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Solution

The fourth proportional to 86,305,145.13, 129,458,839.64 and 28,797,416.37 is: 43,196,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,145.13 : 129,458,839.64 = 28,797,416.37 : x
  2. Step 2: Convert to fraction form
    86,305,145.13/129,458,839.64 = 28,797,416.37/x
  3. Step 3: Cross multiply
    86,305,145.13x = 129,458,839.64 × 28,797,416.37
  4. Step 4: Simplify right side
    86,305,145.13x = 3,728,080,107,746,154
  5. Step 5: Solve for x
    x = 3,728,080,107,746,154/86,305,145.13
  6. Step 6: Final answer
    x = 43,196,498.91

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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.