Home / 138,025,353.65-190,474,976.46-76,145,692.20

Finding the Fourth Proportional to 138,025,353.65, 190,474,976.46 and 76,145,692.20

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Solution

The fourth proportional to 138,025,353.65, 190,474,976.46 and 76,145,692.20 is: 105,081,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,025,353.65 : 190,474,976.46 = 76,145,692.20 : x
  2. Step 2: Convert to fraction form
    138,025,353.65/190,474,976.46 = 76,145,692.20/x
  3. Step 3: Cross multiply
    138,025,353.65x = 190,474,976.46 × 76,145,692.20
  4. Step 4: Simplify right side
    138,025,353.65x = 14,503,848,929,325,406
  5. Step 5: Solve for x
    x = 14,503,848,929,325,406/138,025,353.65
  6. Step 6: Final answer
    x = 105,081,048.85

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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.