Home / 393,831,833.42-543,518,911.50-224,293,239.78

Finding the Fourth Proportional to 393,831,833.42, 543,518,911.50 and 224,293,239.78

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Solution

The fourth proportional to 393,831,833.42, 543,518,911.50 and 224,293,239.78 is: 309,542,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,831,833.42 : 543,518,911.50 = 224,293,239.78 : x
  2. Step 2: Convert to fraction form
    393,831,833.42/543,518,911.50 = 224,293,239.78/x
  3. Step 3: Cross multiply
    393,831,833.42x = 543,518,911.50 × 224,293,239.78
  4. Step 4: Simplify right side
    393,831,833.42x = 121,907,617,540,422,048
  5. Step 5: Solve for x
    x = 121,907,617,540,422,048/393,831,833.42
  6. Step 6: Final answer
    x = 309,542,315.26

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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.