Home / 355,038,449.10-489,953,723.58-198,405,556.26

Finding the Fourth Proportional to 355,038,449.10, 489,953,723.58 and 198,405,556.26

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Solution

The fourth proportional to 355,038,449.10, 489,953,723.58 and 198,405,556.26 is: 273,800,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,038,449.10 : 489,953,723.58 = 198,405,556.26 : x
  2. Step 2: Convert to fraction form
    355,038,449.10/489,953,723.58 = 198,405,556.26/x
  3. Step 3: Cross multiply
    355,038,449.10x = 489,953,723.58 × 198,405,556.26
  4. Step 4: Simplify right side
    355,038,449.10x = 97,209,541,068,548,176
  5. Step 5: Solve for x
    x = 97,209,541,068,548,176/355,038,449.10
  6. Step 6: Final answer
    x = 273,800,038.60

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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.