Home / 20,993,896.80-31,490,845.20-17,406,670.05

Finding the Fourth Proportional to 20,993,896.80, 31,490,845.20 and 17,406,670.05

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Solution

The fourth proportional to 20,993,896.80, 31,490,845.20 and 17,406,670.05 is: 26,110,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,896.80 : 31,490,845.20 = 17,406,670.05 : x
  2. Step 2: Convert to fraction form
    20,993,896.80/31,490,845.20 = 17,406,670.05/x
  3. Step 3: Cross multiply
    20,993,896.80x = 31,490,845.20 × 17,406,670.05
  4. Step 4: Simplify right side
    20,993,896.80x = 548,150,751,992,026.25
  5. Step 5: Solve for x
    x = 548,150,751,992,026.25/20,993,896.80
  6. Step 6: Final answer
    x = 26,110,005.08

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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.