Home / 443,274,979.20-664,852,107.60-115,776,103.20

Finding the Fourth Proportional to 443,274,979.20, 664,852,107.60 and 115,776,103.20

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Solution

The fourth proportional to 443,274,979.20, 664,852,107.60 and 115,776,103.20 is: 173,648,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,274,979.20 : 664,852,107.60 = 115,776,103.20 : x
  2. Step 2: Convert to fraction form
    443,274,979.20/664,852,107.60 = 115,776,103.20/x
  3. Step 3: Cross multiply
    443,274,979.20x = 664,852,107.60 × 115,776,103.20
  4. Step 4: Simplify right side
    443,274,979.20x = 76,973,986,222,235,104
  5. Step 5: Solve for x
    x = 76,973,986,222,235,104/443,274,979.20
  6. Step 6: Final answer
    x = 173,648,389.45

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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.