Home / 3,612,918.30-4,985,369.02-1,980,896.21

Finding the Fourth Proportional to 3,612,918.30, 4,985,369.02 and 1,980,896.21

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Solution

The fourth proportional to 3,612,918.30, 4,985,369.02 and 1,980,896.21 is: 2,733,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612,918.30 : 4,985,369.02 = 1,980,896.21 : x
  2. Step 2: Convert to fraction form
    3,612,918.30/4,985,369.02 = 1,980,896.21/x
  3. Step 3: Cross multiply
    3,612,918.30x = 4,985,369.02 × 1,980,896.21
  4. Step 4: Simplify right side
    3,612,918.30x = 9,875,498,582,271.28
  5. Step 5: Solve for x
    x = 9,875,498,582,271.28/3,612,918.30
  6. Step 6: Final answer
    x = 2,733,385.52

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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.