Home / 13,129,110.36-18,116,501.22-7,328,136.60

Finding the Fourth Proportional to 13,129,110.36, 18,116,501.22 and 7,328,136.60

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Solution

The fourth proportional to 13,129,110.36, 18,116,501.22 and 7,328,136.60 is: 10,111,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129,110.36 : 18,116,501.22 = 7,328,136.60 : x
  2. Step 2: Convert to fraction form
    13,129,110.36/18,116,501.22 = 7,328,136.60/x
  3. Step 3: Cross multiply
    13,129,110.36x = 18,116,501.22 × 7,328,136.60
  4. Step 4: Simplify right side
    13,129,110.36x = 132,760,195,654,226.64
  5. Step 5: Solve for x
    x = 132,760,195,654,226.64/13,129,110.36
  6. Step 6: Final answer
    x = 10,111,895.78

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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.