Home / 4,128,000.70-6,192,001.05-3,120,231.10

Finding the Fourth Proportional to 4,128,000.70, 6,192,001.05 and 3,120,231.10

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Solution

The fourth proportional to 4,128,000.70, 6,192,001.05 and 3,120,231.10 is: 4,680,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128,000.70 : 6,192,001.05 = 3,120,231.10 : x
  2. Step 2: Convert to fraction form
    4,128,000.70/6,192,001.05 = 3,120,231.10/x
  3. Step 3: Cross multiply
    4,128,000.70x = 6,192,001.05 × 3,120,231.10
  4. Step 4: Simplify right side
    4,128,000.70x = 19,320,474,247,442.66
  5. Step 5: Solve for x
    x = 19,320,474,247,442.66/4,128,000.70
  6. Step 6: Final answer
    x = 4,680,346.65

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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.