Home / 855,205,382.28-1,282,339,391.88-264,831,728.28

Finding the Fourth Proportional to 855,205,382.28, 1,282,339,391.88 and 264,831,728.28

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Solution

The fourth proportional to 855,205,382.28, 1,282,339,391.88 and 264,831,728.28 is: 397,102,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,205,382.28 : 1,282,339,391.88 = 264,831,728.28 : x
  2. Step 2: Convert to fraction form
    855,205,382.28/1,282,339,391.88 = 264,831,728.28/x
  3. Step 3: Cross multiply
    855,205,382.28x = 1,282,339,391.88 × 264,831,728.28
  4. Step 4: Simplify right side
    855,205,382.28x = 339,604,157,393,104,640
  5. Step 5: Solve for x
    x = 339,604,157,393,104,640/855,205,382.28
  6. Step 6: Final answer
    x = 397,102,455.66

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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.