Home / 87,336,036.40-131,004,054.60-85,635,425.20

Finding the Fourth Proportional to 87,336,036.40, 131,004,054.60 and 85,635,425.20

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Solution

The fourth proportional to 87,336,036.40, 131,004,054.60 and 85,635,425.20 is: 128,453,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,336,036.40 : 131,004,054.60 = 85,635,425.20 : x
  2. Step 2: Convert to fraction form
    87,336,036.40/131,004,054.60 = 85,635,425.20/x
  3. Step 3: Cross multiply
    87,336,036.40x = 131,004,054.60 × 85,635,425.20
  4. Step 4: Simplify right side
    87,336,036.40x = 11,218,587,918,595,016
  5. Step 5: Solve for x
    x = 11,218,587,918,595,016/87,336,036.40
  6. Step 6: Final answer
    x = 128,453,137.80

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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.