Home / 355,038,458.28-489,953,736.24-198,405,565.44

Finding the Fourth Proportional to 355,038,458.28, 489,953,736.24 and 198,405,565.44

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Solution

The fourth proportional to 355,038,458.28, 489,953,736.24 and 198,405,565.44 is: 273,800,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,038,458.28 : 489,953,736.24 = 198,405,565.44 : x
  2. Step 2: Convert to fraction form
    355,038,458.28/489,953,736.24 = 198,405,565.44/x
  3. Step 3: Cross multiply
    355,038,458.28x = 489,953,736.24 × 198,405,565.44
  4. Step 4: Simplify right side
    355,038,458.28x = 97,209,548,078,137,824
  5. Step 5: Solve for x
    x = 97,209,548,078,137,824/355,038,458.28
  6. Step 6: Final answer
    x = 273,800,051.27

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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.