Home / 20,386,158.72-30,557,980.80-8,263,990.32

Finding the Fourth Proportional to 20,386,158.72, 30,557,980.80 and 8,263,990.32

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Solution

The fourth proportional to 20,386,158.72, 30,557,980.80 and 8,263,990.32 is: 12,387,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,158.72 : 30,557,980.80 = 8,263,990.32 : x
  2. Step 2: Convert to fraction form
    20,386,158.72/30,557,980.80 = 8,263,990.32/x
  3. Step 3: Cross multiply
    20,386,158.72x = 30,557,980.80 × 8,263,990.32
  4. Step 4: Simplify right side
    20,386,158.72x = 252,530,857,529,945.88
  5. Step 5: Solve for x
    x = 252,530,857,529,945.88/20,386,158.72
  6. Step 6: Final answer
    x = 12,387,368.36

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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.