Home / 12,738,900.77-17,580,180.73-7,232,788.09

Finding the Fourth Proportional to 12,738,900.77, 17,580,180.73 and 7,232,788.09

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Solution

The fourth proportional to 12,738,900.77, 17,580,180.73 and 7,232,788.09 is: 9,981,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738,900.77 : 17,580,180.73 = 7,232,788.09 : x
  2. Step 2: Convert to fraction form
    12,738,900.77/17,580,180.73 = 7,232,788.09/x
  3. Step 3: Cross multiply
    12,738,900.77x = 17,580,180.73 × 7,232,788.09
  4. Step 4: Simplify right side
    12,738,900.77x = 127,153,721,803,991.50
  5. Step 5: Solve for x
    x = 127,153,721,803,991.50/12,738,900.77
  6. Step 6: Final answer
    x = 9,981,530.13

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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.