Home / 889,410,233.25-1,226,670,448.86-781,889,660.64

Finding the Fourth Proportional to 889,410,233.25, 1,226,670,448.86 and 781,889,660.64

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Solution

The fourth proportional to 889,410,233.25, 1,226,670,448.86 and 781,889,660.64 is: 1,078,378,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,410,233.25 : 1,226,670,448.86 = 781,889,660.64 : x
  2. Step 2: Convert to fraction form
    889,410,233.25/1,226,670,448.86 = 781,889,660.64/x
  3. Step 3: Cross multiply
    889,410,233.25x = 1,226,670,448.86 × 781,889,660.64
  4. Step 4: Simplify right side
    889,410,233.25x = 959,120,940,976,261,760
  5. Step 5: Solve for x
    x = 959,120,940,976,261,760/889,410,233.25
  6. Step 6: Final answer
    x = 1,078,378,576.18

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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.