Home / 12,986,249.04-17,916,671.78-7,479,513.64

Finding the Fourth Proportional to 12,986,249.04, 17,916,671.78 and 7,479,513.64

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Solution

The fourth proportional to 12,986,249.04, 17,916,671.78 and 7,479,513.64 is: 10,319,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986,249.04 : 17,916,671.78 = 7,479,513.64 : x
  2. Step 2: Convert to fraction form
    12,986,249.04/17,916,671.78 = 7,479,513.64/x
  3. Step 3: Cross multiply
    12,986,249.04x = 17,916,671.78 × 7,479,513.64
  4. Step 4: Simplify right side
    12,986,249.04x = 134,007,990,961,913.08
  5. Step 5: Solve for x
    x = 134,007,990,961,913.08/12,986,249.04
  6. Step 6: Final answer
    x = 10,319,222.32

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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.