Home / 321,408,007.20-482,112,010.80-103,057,927.20

Finding the Fourth Proportional to 321,408,007.20, 482,112,010.80 and 103,057,927.20

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Solution

The fourth proportional to 321,408,007.20, 482,112,010.80 and 103,057,927.20 is: 154,586,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,408,007.20 : 482,112,010.80 = 103,057,927.20 : x
  2. Step 2: Convert to fraction form
    321,408,007.20/482,112,010.80 = 103,057,927.20/x
  3. Step 3: Cross multiply
    321,408,007.20x = 482,112,010.80 × 103,057,927.20
  4. Step 4: Simplify right side
    321,408,007.20x = 49,685,464,511,272,016
  5. Step 5: Solve for x
    x = 49,685,464,511,272,016/321,408,007.20
  6. Step 6: Final answer
    x = 154,586,890.80

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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.