Home / 12,357,826.20-18,536,739.30-7,306,536.60

Finding the Fourth Proportional to 12,357,826.20, 18,536,739.30 and 7,306,536.60

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Solution

The fourth proportional to 12,357,826.20, 18,536,739.30 and 7,306,536.60 is: 10,959,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,826.20 : 18,536,739.30 = 7,306,536.60 : x
  2. Step 2: Convert to fraction form
    12,357,826.20/18,536,739.30 = 7,306,536.60/x
  3. Step 3: Cross multiply
    12,357,826.20x = 18,536,739.30 × 7,306,536.60
  4. Step 4: Simplify right side
    12,357,826.20x = 135,439,364,140,108.38
  5. Step 5: Solve for x
    x = 135,439,364,140,108.38/12,357,826.20
  6. Step 6: Final answer
    x = 10,959,804.90

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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.