Home / 12,790,834.32-17,651,582.30-6,989,860.56

Finding the Fourth Proportional to 12,790,834.32, 17,651,582.30 and 6,989,860.56

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Solution

The fourth proportional to 12,790,834.32, 17,651,582.30 and 6,989,860.56 is: 9,646,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,834.32 : 17,651,582.30 = 6,989,860.56 : x
  2. Step 2: Convert to fraction form
    12,790,834.32/17,651,582.30 = 6,989,860.56/x
  3. Step 3: Cross multiply
    12,790,834.32x = 17,651,582.30 × 6,989,860.56
  4. Step 4: Simplify right side
    12,790,834.32x = 123,382,098,940,364.09
  5. Step 5: Solve for x
    x = 123,382,098,940,364.09/12,790,834.32
  6. Step 6: Final answer
    x = 9,646,133.77

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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.