Home / 12,786,804.80-17,646,136.80-7,633,157.36

Finding the Fourth Proportional to 12,786,804.80, 17,646,136.80 and 7,633,157.36

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Solution

The fourth proportional to 12,786,804.80, 17,646,136.80 and 7,633,157.36 is: 10,533,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786,804.80 : 17,646,136.80 = 7,633,157.36 : x
  2. Step 2: Convert to fraction form
    12,786,804.80/17,646,136.80 = 7,633,157.36/x
  3. Step 3: Cross multiply
    12,786,804.80x = 17,646,136.80 × 7,633,157.36
  4. Step 4: Simplify right side
    12,786,804.80x = 134,695,738,990,486.86
  5. Step 5: Solve for x
    x = 134,695,738,990,486.86/12,786,804.80
  6. Step 6: Final answer
    x = 10,533,963.81

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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.