Home / 472,395,401.80-708,593,102.70-127,383,904.60

Finding the Fourth Proportional to 472,395,401.80, 708,593,102.70 and 127,383,904.60

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Solution

The fourth proportional to 472,395,401.80, 708,593,102.70 and 127,383,904.60 is: 191,075,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,401.80 : 708,593,102.70 = 127,383,904.60 : x
  2. Step 2: Convert to fraction form
    472,395,401.80/708,593,102.70 = 127,383,904.60/x
  3. Step 3: Cross multiply
    472,395,401.80x = 708,593,102.70 × 127,383,904.60
  4. Step 4: Simplify right side
    472,395,401.80x = 90,263,356,194,554,800
  5. Step 5: Solve for x
    x = 90,263,356,194,554,800/472,395,401.80
  6. Step 6: Final answer
    x = 191,075,856.90

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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.