Home / 2,140,005-2,953,418.16-1,222,371.36

Finding the Fourth Proportional to 2,140,005, 2,953,418.16 and 1,222,371.36

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Solution

The fourth proportional to 2,140,005, 2,953,418.16 and 1,222,371.36 is: 1,686,993.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,005 : 2,953,418.16 = 1,222,371.36 : x
  2. Step 2: Convert to fraction form
    2,140,005/2,953,418.16 = 1,222,371.36/x
  3. Step 3: Cross multiply
    2,140,005x = 2,953,418.16 × 1,222,371.36
  4. Step 4: Simplify right side
    2,140,005x = 3,610,173,772,887.90
  5. Step 5: Solve for x
    x = 3,610,173,772,887.90/2,140,005
  6. Step 6: Final answer
    x = 1,686,993.15

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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.