Home / 319,400,802.20-479,101,203.30-137,647,980.20

Finding the Fourth Proportional to 319,400,802.20, 479,101,203.30 and 137,647,980.20

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Solution

The fourth proportional to 319,400,802.20, 479,101,203.30 and 137,647,980.20 is: 206,471,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,400,802.20 : 479,101,203.30 = 137,647,980.20 : x
  2. Step 2: Convert to fraction form
    319,400,802.20/479,101,203.30 = 137,647,980.20/x
  3. Step 3: Cross multiply
    319,400,802.20x = 479,101,203.30 × 137,647,980.20
  4. Step 4: Simplify right side
    319,400,802.20x = 65,947,312,945,634,568
  5. Step 5: Solve for x
    x = 65,947,312,945,634,568/319,400,802.20
  6. Step 6: Final answer
    x = 206,471,970.30

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Similar ratio
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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.