Home / 18,809,456.69-28,213,932.81-5,162,586.94

Finding the Fourth Proportional to 18,809,456.69, 28,213,932.81 and 5,162,586.94

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Solution

The fourth proportional to 18,809,456.69, 28,213,932.81 and 5,162,586.94 is: 7,743,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,456.69 : 28,213,932.81 = 5,162,586.94 : x
  2. Step 2: Convert to fraction form
    18,809,456.69/28,213,932.81 = 5,162,586.94/x
  3. Step 3: Cross multiply
    18,809,456.69x = 28,213,932.81 × 5,162,586.94
  4. Step 4: Simplify right side
    18,809,456.69x = 145,656,881,076,531.06
  5. Step 5: Solve for x
    x = 145,656,881,076,531.06/18,809,456.69
  6. Step 6: Final answer
    x = 7,743,811.18

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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.