Home / 864,825,912.18-1,193,453,816.13-468,339,828.66

Finding the Fourth Proportional to 864,825,912.18, 1,193,453,816.13 and 468,339,828.66

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Solution

The fourth proportional to 864,825,912.18, 1,193,453,816.13 and 468,339,828.66 is: 646,305,745.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,825,912.18 : 1,193,453,816.13 = 468,339,828.66 : x
  2. Step 2: Convert to fraction form
    864,825,912.18/1,193,453,816.13 = 468,339,828.66/x
  3. Step 3: Cross multiply
    864,825,912.18x = 1,193,453,816.13 × 468,339,828.66
  4. Step 4: Simplify right side
    864,825,912.18x = 558,941,955,759,947,456
  5. Step 5: Solve for x
    x = 558,941,955,759,947,456/864,825,912.18
  6. Step 6: Final answer
    x = 646,305,745.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.