Home / 86,305,132.56-129,458,820.69-28,797,403.71

Finding the Fourth Proportional to 86,305,132.56, 129,458,820.69 and 28,797,403.71

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Solution

The fourth proportional to 86,305,132.56, 129,458,820.69 and 28,797,403.71 is: 43,196,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,132.56 : 129,458,820.69 = 28,797,403.71 : x
  2. Step 2: Convert to fraction form
    86,305,132.56/129,458,820.69 = 28,797,403.71/x
  3. Step 3: Cross multiply
    86,305,132.56x = 129,458,820.69 × 28,797,403.71
  4. Step 4: Simplify right side
    86,305,132.56x = 3,728,077,923,230,431
  5. Step 5: Solve for x
    x = 3,728,077,923,230,431/86,305,132.56
  6. Step 6: Final answer
    x = 43,196,479.89

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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.