Home / 12,640,399.03-17,443,750.40-6,839,180.78

Finding the Fourth Proportional to 12,640,399.03, 17,443,750.40 and 6,839,180.78

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Solution

The fourth proportional to 12,640,399.03, 17,443,750.40 and 6,839,180.78 is: 9,438,069.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,399.03 : 17,443,750.40 = 6,839,180.78 : x
  2. Step 2: Convert to fraction form
    12,640,399.03/17,443,750.40 = 6,839,180.78/x
  3. Step 3: Cross multiply
    12,640,399.03x = 17,443,750.40 × 6,839,180.78
  4. Step 4: Simplify right side
    12,640,399.03x = 119,300,962,345,382.66
  5. Step 5: Solve for x
    x = 119,300,962,345,382.66/12,640,399.03
  6. Step 6: Final answer
    x = 9,438,069.32

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1.5x scale

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.