Home / 91,174,324.08-125,809,039.80-72,636,481.20

Finding the Fourth Proportional to 91,174,324.08, 125,809,039.80 and 72,636,481.20

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Solution

The fourth proportional to 91,174,324.08, 125,809,039.80 and 72,636,481.20 is: 100,229,160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,174,324.08 : 125,809,039.80 = 72,636,481.20 : x
  2. Step 2: Convert to fraction form
    91,174,324.08/125,809,039.80 = 72,636,481.20/x
  3. Step 3: Cross multiply
    91,174,324.08x = 125,809,039.80 × 72,636,481.20
  4. Step 4: Simplify right side
    91,174,324.08x = 9,138,325,954,222,752
  5. Step 5: Solve for x
    x = 9,138,325,954,222,752/91,174,324.08
  6. Step 6: Final answer
    x = 100,229,160.42

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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.