Home / 472,395,335.80-708,593,003.70-127,383,838.60

Finding the Fourth Proportional to 472,395,335.80, 708,593,003.70 and 127,383,838.60

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Solution

The fourth proportional to 472,395,335.80, 708,593,003.70 and 127,383,838.60 is: 191,075,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,335.80 : 708,593,003.70 = 127,383,838.60 : x
  2. Step 2: Convert to fraction form
    472,395,335.80/708,593,003.70 = 127,383,838.60/x
  3. Step 3: Cross multiply
    472,395,335.80x = 708,593,003.70 × 127,383,838.60
  4. Step 4: Simplify right side
    472,395,335.80x = 90,263,296,816,410,000
  5. Step 5: Solve for x
    x = 90,263,296,816,410,000/472,395,335.80
  6. Step 6: Final answer
    x = 191,075,757.90

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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.