Home / 3,888,069-5,365,690.74-2,169,339.72

Finding the Fourth Proportional to 3,888,069, 5,365,690.74 and 2,169,339.72

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Solution

The fourth proportional to 3,888,069, 5,365,690.74 and 2,169,339.72 is: 2,993,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888,069 : 5,365,690.74 = 2,169,339.72 : x
  2. Step 2: Convert to fraction form
    3,888,069/5,365,690.74 = 2,169,339.72/x
  3. Step 3: Cross multiply
    3,888,069x = 5,365,690.74 × 2,169,339.72
  4. Step 4: Simplify right side
    3,888,069x = 11,640,006,047,518.20
  5. Step 5: Solve for x
    x = 11,640,006,047,518.20/3,888,069
  6. Step 6: Final answer
    x = 2,993,775.59

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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.