Home / 3,119,273.20-4,678,909.80-1,906,800.40

Finding the Fourth Proportional to 3,119,273.20, 4,678,909.80 and 1,906,800.40

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Solution

The fourth proportional to 3,119,273.20, 4,678,909.80 and 1,906,800.40 is: 2,860,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,273.20 : 4,678,909.80 = 1,906,800.40 : x
  2. Step 2: Convert to fraction form
    3,119,273.20/4,678,909.80 = 1,906,800.40/x
  3. Step 3: Cross multiply
    3,119,273.20x = 4,678,909.80 × 1,906,800.40
  4. Step 4: Simplify right side
    3,119,273.20x = 8,921,747,078,203.92
  5. Step 5: Solve for x
    x = 8,921,747,078,203.92/3,119,273.20
  6. Step 6: Final answer
    x = 2,860,200.60

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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.