Home / 820,303,163.87-1,230,509,604.27-288,451,047.89

Finding the Fourth Proportional to 820,303,163.87, 1,230,509,604.27 and 288,451,047.89

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Solution

The fourth proportional to 820,303,163.87, 1,230,509,604.27 and 288,451,047.89 is: 432,695,862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,303,163.87 : 1,230,509,604.27 = 288,451,047.89 : x
  2. Step 2: Convert to fraction form
    820,303,163.87/1,230,509,604.27 = 288,451,047.89/x
  3. Step 3: Cross multiply
    820,303,163.87x = 1,230,509,604.27 × 288,451,047.89
  4. Step 4: Simplify right side
    820,303,163.87x = 354,941,784,782,795,904
  5. Step 5: Solve for x
    x = 354,941,784,782,795,904/820,303,163.87
  6. Step 6: Final answer
    x = 432,695,862.24

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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.