Home / 2,158,037.39-2,977,879.65-1,191,105.41

Finding the Fourth Proportional to 2,158,037.39, 2,977,879.65 and 1,191,105.41

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Solution

The fourth proportional to 2,158,037.39, 2,977,879.65 and 1,191,105.41 is: 1,643,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,037.39 : 2,977,879.65 = 1,191,105.41 : x
  2. Step 2: Convert to fraction form
    2,158,037.39/2,977,879.65 = 1,191,105.41/x
  3. Step 3: Cross multiply
    2,158,037.39x = 2,977,879.65 × 1,191,105.41
  4. Step 4: Simplify right side
    2,158,037.39x = 3,546,968,546,554.51
  5. Step 5: Solve for x
    x = 3,546,968,546,554.51/2,158,037.39
  6. Step 6: Final answer
    x = 1,643,608.47

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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.