Home / 199,365,728.40-298,836,016.20-76,496,569.20

Finding the Fourth Proportional to 199,365,728.40, 298,836,016.20 and 76,496,569.20

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Solution

The fourth proportional to 199,365,728.40, 298,836,016.20 and 76,496,569.20 is: 114,663,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,365,728.40 : 298,836,016.20 = 76,496,569.20 : x
  2. Step 2: Convert to fraction form
    199,365,728.40/298,836,016.20 = 76,496,569.20/x
  3. Step 3: Cross multiply
    199,365,728.40x = 298,836,016.20 × 76,496,569.20
  4. Step 4: Simplify right side
    199,365,728.40x = 22,859,929,992,695,620
  5. Step 5: Solve for x
    x = 22,859,929,992,695,620/199,365,728.40
  6. Step 6: Final answer
    x = 114,663,288.30

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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.