Home / 18,979,331.60-28,468,997.40-18,097,533.20

Finding the Fourth Proportional to 18,979,331.60, 28,468,997.40 and 18,097,533.20

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Solution

The fourth proportional to 18,979,331.60, 28,468,997.40 and 18,097,533.20 is: 27,146,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979,331.60 : 28,468,997.40 = 18,097,533.20 : x
  2. Step 2: Convert to fraction form
    18,979,331.60/28,468,997.40 = 18,097,533.20/x
  3. Step 3: Cross multiply
    18,979,331.60x = 28,468,997.40 × 18,097,533.20
  4. Step 4: Simplify right side
    18,979,331.60x = 515,218,625,617,213.62
  5. Step 5: Solve for x
    x = 515,218,625,617,213.62/18,979,331.60
  6. Step 6: Final answer
    x = 27,146,299.80

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1.5x scale

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.