Home / 3,129,879.69-4,319,615.39-1,840,657.77

Finding the Fourth Proportional to 3,129,879.69, 4,319,615.39 and 1,840,657.77

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Solution

The fourth proportional to 3,129,879.69, 4,319,615.39 and 1,840,657.77 is: 2,540,332.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,879.69 : 4,319,615.39 = 1,840,657.77 : x
  2. Step 2: Convert to fraction form
    3,129,879.69/4,319,615.39 = 1,840,657.77/x
  3. Step 3: Cross multiply
    3,129,879.69x = 4,319,615.39 × 1,840,657.77
  4. Step 4: Simplify right side
    3,129,879.69x = 7,950,933,621,811.79
  5. Step 5: Solve for x
    x = 7,950,933,621,811.79/3,129,879.69
  6. Step 6: Final answer
    x = 2,540,332.03

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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.