Home / 2,927,990.07-4,040,625.40-1,638,830.12

Finding the Fourth Proportional to 2,927,990.07, 4,040,625.40 and 1,638,830.12

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Solution

The fourth proportional to 2,927,990.07, 4,040,625.40 and 1,638,830.12 is: 2,261,585.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927,990.07 : 4,040,625.40 = 1,638,830.12 : x
  2. Step 2: Convert to fraction form
    2,927,990.07/4,040,625.40 = 1,638,830.12/x
  3. Step 3: Cross multiply
    2,927,990.07x = 4,040,625.40 × 1,638,830.12
  4. Step 4: Simplify right side
    2,927,990.07x = 6,621,898,584,856.85
  5. Step 5: Solve for x
    x = 6,621,898,584,856.85/2,927,990.07
  6. Step 6: Final answer
    x = 2,261,585.06

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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.