Home / 447,359,990.48-670,728,013.08-198,229,749.68

Finding the Fourth Proportional to 447,359,990.48, 670,728,013.08 and 198,229,749.68

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Solution

The fourth proportional to 447,359,990.48, 670,728,013.08 and 198,229,749.68 is: 297,206,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,359,990.48 : 670,728,013.08 = 198,229,749.68 : x
  2. Step 2: Convert to fraction form
    447,359,990.48/670,728,013.08 = 198,229,749.68/x
  3. Step 3: Cross multiply
    447,359,990.48x = 670,728,013.08 × 198,229,749.68
  4. Step 4: Simplify right side
    447,359,990.48x = 132,958,246,136,212,176
  5. Step 5: Solve for x
    x = 132,958,246,136,212,176/447,359,990.48
  6. Step 6: Final answer
    x = 297,206,386.28

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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.