Home / 319,256,216.40-478,955,183.40-146,691,418.80

Finding the Fourth Proportional to 319,256,216.40, 478,955,183.40 and 146,691,418.80

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Solution

The fourth proportional to 319,256,216.40, 478,955,183.40 and 146,691,418.80 is: 220,069,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,256,216.40 : 478,955,183.40 = 146,691,418.80 : x
  2. Step 2: Convert to fraction form
    319,256,216.40/478,955,183.40 = 146,691,418.80/x
  3. Step 3: Cross multiply
    319,256,216.40x = 478,955,183.40 × 146,691,418.80
  4. Step 4: Simplify right side
    319,256,216.40x = 70,258,615,394,560,208
  5. Step 5: Solve for x
    x = 70,258,615,394,560,208/319,256,216.40
  6. Step 6: Final answer
    x = 220,069,686.31

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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.