Home / 86,305,124.55-129,458,808.69-28,797,395.72

Finding the Fourth Proportional to 86,305,124.55, 129,458,808.69 and 28,797,395.72

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Solution

The fourth proportional to 86,305,124.55, 129,458,808.69 and 28,797,395.72 is: 43,196,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,124.55 : 129,458,808.69 = 28,797,395.72 : x
  2. Step 2: Convert to fraction form
    86,305,124.55/129,458,808.69 = 28,797,395.72/x
  3. Step 3: Cross multiply
    86,305,124.55x = 129,458,808.69 × 28,797,395.72
  4. Step 4: Simplify right side
    86,305,124.55x = 3,728,076,543,285,704.50
  5. Step 5: Solve for x
    x = 3,728,076,543,285,704.50/86,305,124.55
  6. Step 6: Final answer
    x = 43,196,467.91

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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.