Home / 13,309,870.10-18,367,633.08-7,198,298.60

Finding the Fourth Proportional to 13,309,870.10, 18,367,633.08 and 7,198,298.60

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Solution

The fourth proportional to 13,309,870.10, 18,367,633.08 and 7,198,298.60 is: 9,933,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,870.10 : 18,367,633.08 = 7,198,298.60 : x
  2. Step 2: Convert to fraction form
    13,309,870.10/18,367,633.08 = 7,198,298.60/x
  3. Step 3: Cross multiply
    13,309,870.10x = 18,367,633.08 × 7,198,298.60
  4. Step 4: Simplify right side
    13,309,870.10x = 132,215,707,485,077.67
  5. Step 5: Solve for x
    x = 132,215,707,485,077.67/13,309,870.10
  6. Step 6: Final answer
    x = 9,933,658.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.