Home / 641,713,007.40-962,634,764.75-221,479,687.05

Finding the Fourth Proportional to 641,713,007.40, 962,634,764.75 and 221,479,687.05

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Solution

The fourth proportional to 641,713,007.40, 962,634,764.75 and 221,479,687.05 is: 332,242,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,713,007.40 : 962,634,764.75 = 221,479,687.05 : x
  2. Step 2: Convert to fraction form
    641,713,007.40/962,634,764.75 = 221,479,687.05/x
  3. Step 3: Cross multiply
    641,713,007.40x = 962,634,764.75 × 221,479,687.05
  4. Step 4: Simplify right side
    641,713,007.40x = 213,204,046,439,172,992
  5. Step 5: Solve for x
    x = 213,204,046,439,172,992/641,713,007.40
  6. Step 6: Final answer
    x = 332,242,052.10

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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.