Home / 12,472,356.80-18,694,538.40-7,083,588.80

Finding the Fourth Proportional to 12,472,356.80, 18,694,538.40 and 7,083,588.80

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Solution

The fourth proportional to 12,472,356.80, 18,694,538.40 and 7,083,588.80 is: 10,617,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472,356.80 : 18,694,538.40 = 7,083,588.80 : x
  2. Step 2: Convert to fraction form
    12,472,356.80/18,694,538.40 = 7,083,588.80/x
  3. Step 3: Cross multiply
    12,472,356.80x = 18,694,538.40 × 7,083,588.80
  4. Step 4: Simplify right side
    12,472,356.80x = 132,424,422,831,409.91
  5. Step 5: Solve for x
    x = 132,424,422,831,409.91/12,472,356.80
  6. Step 6: Final answer
    x = 10,617,433.81

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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.