Home / 419,328,011.20-628,992,016.80-296,884,004.80

Finding the Fourth Proportional to 419,328,011.20, 628,992,016.80 and 296,884,004.80

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Solution

The fourth proportional to 419,328,011.20, 628,992,016.80 and 296,884,004.80 is: 445,326,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,328,011.20 : 628,992,016.80 = 296,884,004.80 : x
  2. Step 2: Convert to fraction form
    419,328,011.20/628,992,016.80 = 296,884,004.80/x
  3. Step 3: Cross multiply
    419,328,011.20x = 628,992,016.80 × 296,884,004.80
  4. Step 4: Simplify right side
    419,328,011.20x = 186,737,668,934,812,864
  5. Step 5: Solve for x
    x = 186,737,668,934,812,864/419,328,011.20
  6. Step 6: Final answer
    x = 445,326,007.20

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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.