Home / 13,309,884.16-18,367,652.40-7,198,312.72

Finding the Fourth Proportional to 13,309,884.16, 18,367,652.40 and 7,198,312.72

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Solution

The fourth proportional to 13,309,884.16, 18,367,652.40 and 7,198,312.72 is: 9,933,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,884.16 : 18,367,652.40 = 7,198,312.72 : x
  2. Step 2: Convert to fraction form
    13,309,884.16/18,367,652.40 = 7,198,312.72/x
  3. Step 3: Cross multiply
    13,309,884.16x = 18,367,652.40 × 7,198,312.72
  4. Step 4: Simplify right side
    13,309,884.16x = 132,216,105,907,458.52
  5. Step 5: Solve for x
    x = 132,216,105,907,458.52/13,309,884.16
  6. Step 6: Final answer
    x = 9,933,678.18

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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.