Home / 86,305,123.55-129,458,807.19-28,797,394.72

Finding the Fourth Proportional to 86,305,123.55, 129,458,807.19 and 28,797,394.72

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Solution

The fourth proportional to 86,305,123.55, 129,458,807.19 and 28,797,394.72 is: 43,196,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,123.55 : 129,458,807.19 = 28,797,394.72 : x
  2. Step 2: Convert to fraction form
    86,305,123.55/129,458,807.19 = 28,797,394.72/x
  3. Step 3: Cross multiply
    86,305,123.55x = 129,458,807.19 × 28,797,394.72
  4. Step 4: Simplify right side
    86,305,123.55x = 3,728,076,370,226,329
  5. Step 5: Solve for x
    x = 3,728,076,370,226,329/86,305,123.55
  6. Step 6: Final answer
    x = 43,196,466.41

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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.