Home / 20,179,460.20-30,348,906.45-18,106,840.30

Finding the Fourth Proportional to 20,179,460.20, 30,348,906.45 and 18,106,840.30

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Solution

The fourth proportional to 20,179,460.20, 30,348,906.45 and 18,106,840.30 is: 27,231,789.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179,460.20 : 30,348,906.45 = 18,106,840.30 : x
  2. Step 2: Convert to fraction form
    20,179,460.20/30,348,906.45 = 18,106,840.30/x
  3. Step 3: Cross multiply
    20,179,460.20x = 30,348,906.45 × 18,106,840.30
  4. Step 4: Simplify right side
    20,179,460.20x = 549,522,802,369,789.94
  5. Step 5: Solve for x
    x = 549,522,802,369,789.94/20,179,460.20
  6. Step 6: Final answer
    x = 27,231,789.00

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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.