Home / 1,921,221.96-2,651,539.74-1,858,131.86

Finding the Fourth Proportional to 1,921,221.96, 2,651,539.74 and 1,858,131.86

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Solution

The fourth proportional to 1,921,221.96, 2,651,539.74 and 1,858,131.86 is: 2,564,467.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,221.96 : 2,651,539.74 = 1,858,131.86 : x
  2. Step 2: Convert to fraction form
    1,921,221.96/2,651,539.74 = 1,858,131.86/x
  3. Step 3: Cross multiply
    1,921,221.96x = 2,651,539.74 × 1,858,131.86
  4. Step 4: Simplify right side
    1,921,221.96x = 4,926,910,468,950.12
  5. Step 5: Solve for x
    x = 4,926,910,468,950.12/1,921,221.96
  6. Step 6: Final answer
    x = 2,564,467.08

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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.