Home / 398,580,203.20-597,964,783.20-204,521,569.60

Finding the Fourth Proportional to 398,580,203.20, 597,964,783.20 and 204,521,569.60

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Solution

The fourth proportional to 398,580,203.20, 597,964,783.20 and 204,521,569.60 is: 306,830,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,580,203.20 : 597,964,783.20 = 204,521,569.60 : x
  2. Step 2: Convert to fraction form
    398,580,203.20/597,964,783.20 = 204,521,569.60/x
  3. Step 3: Cross multiply
    398,580,203.20x = 597,964,783.20 × 204,521,569.60
  4. Step 4: Simplify right side
    398,580,203.20x = 122,296,696,025,587,712
  5. Step 5: Solve for x
    x = 122,296,696,025,587,712/398,580,203.20
  6. Step 6: Final answer
    x = 306,830,833.65

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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.