Home / 303,221,680.74-418,445,919.81-163,992,442.86

Finding the Fourth Proportional to 303,221,680.74, 418,445,919.81 and 163,992,442.86

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Solution

The fourth proportional to 303,221,680.74, 418,445,919.81 and 163,992,442.86 is: 226,309,571.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,221,680.74 : 418,445,919.81 = 163,992,442.86 : x
  2. Step 2: Convert to fraction form
    303,221,680.74/418,445,919.81 = 163,992,442.86/x
  3. Step 3: Cross multiply
    303,221,680.74x = 418,445,919.81 × 163,992,442.86
  4. Step 4: Simplify right side
    303,221,680.74x = 68,621,968,594,441,576
  5. Step 5: Solve for x
    x = 68,621,968,594,441,576/303,221,680.74
  6. Step 6: Final answer
    x = 226,309,571.36

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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.