Home / 20,551,238.40-30,804,739.20-7,766,803.20

Finding the Fourth Proportional to 20,551,238.40, 30,804,739.20 and 7,766,803.20

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Solution

The fourth proportional to 20,551,238.40, 30,804,739.20 and 7,766,803.20 is: 11,641,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,238.40 : 30,804,739.20 = 7,766,803.20 : x
  2. Step 2: Convert to fraction form
    20,551,238.40/30,804,739.20 = 7,766,803.20/x
  3. Step 3: Cross multiply
    20,551,238.40x = 30,804,739.20 × 7,766,803.20
  4. Step 4: Simplify right side
    20,551,238.40x = 239,254,346,993,725.44
  5. Step 5: Solve for x
    x = 239,254,346,993,725.44/20,551,238.40
  6. Step 6: Final answer
    x = 11,641,845.73

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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.