Home / 12,965,979.60-19,452,331.80-6,895,719.72

Finding the Fourth Proportional to 12,965,979.60, 19,452,331.80 and 6,895,719.72

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Solution

The fourth proportional to 12,965,979.60, 19,452,331.80 and 6,895,719.72 is: 10,345,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965,979.60 : 19,452,331.80 = 6,895,719.72 : x
  2. Step 2: Convert to fraction form
    12,965,979.60/19,452,331.80 = 6,895,719.72/x
  3. Step 3: Cross multiply
    12,965,979.60x = 19,452,331.80 × 6,895,719.72
  4. Step 4: Simplify right side
    12,965,979.60x = 134,137,827,993,243.09
  5. Step 5: Solve for x
    x = 134,137,827,993,243.09/12,965,979.60
  6. Step 6: Final answer
    x = 10,345,367.81

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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.