Home / 408,859,810.80-613,289,716.20-245,601,135.60

Finding the Fourth Proportional to 408,859,810.80, 613,289,716.20 and 245,601,135.60

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Solution

The fourth proportional to 408,859,810.80, 613,289,716.20 and 245,601,135.60 is: 368,401,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,859,810.80 : 613,289,716.20 = 245,601,135.60 : x
  2. Step 2: Convert to fraction form
    408,859,810.80/613,289,716.20 = 245,601,135.60/x
  3. Step 3: Cross multiply
    408,859,810.80x = 613,289,716.20 × 245,601,135.60
  4. Step 4: Simplify right side
    408,859,810.80x = 150,624,650,750,521,728
  5. Step 5: Solve for x
    x = 150,624,650,750,521,728/408,859,810.80
  6. Step 6: Final answer
    x = 368,401,703.40

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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.