Home / 521,592,005.20-782,388,007.80-482,177,016.40

Finding the Fourth Proportional to 521,592,005.20, 782,388,007.80 and 482,177,016.40

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Solution

The fourth proportional to 521,592,005.20, 782,388,007.80 and 482,177,016.40 is: 723,265,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,592,005.20 : 782,388,007.80 = 482,177,016.40 : x
  2. Step 2: Convert to fraction form
    521,592,005.20/782,388,007.80 = 482,177,016.40/x
  3. Step 3: Cross multiply
    521,592,005.20x = 782,388,007.80 × 482,177,016.40
  4. Step 4: Simplify right side
    521,592,005.20x = 377,249,515,268,143,872
  5. Step 5: Solve for x
    x = 377,249,515,268,143,872/521,592,005.20
  6. Step 6: Final answer
    x = 723,265,524.60

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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.