Home / 6,686,139.40-10,028,625.90-2,198,415.40

Finding the Fourth Proportional to 6,686,139.40, 10,028,625.90 and 2,198,415.40

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Solution

The fourth proportional to 6,686,139.40, 10,028,625.90 and 2,198,415.40 is: 3,297,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686,139.40 : 10,028,625.90 = 2,198,415.40 : x
  2. Step 2: Convert to fraction form
    6,686,139.40/10,028,625.90 = 2,198,415.40/x
  3. Step 3: Cross multiply
    6,686,139.40x = 10,028,625.90 × 2,198,415.40
  4. Step 4: Simplify right side
    6,686,139.40x = 22,047,085,619,398.86
  5. Step 5: Solve for x
    x = 22,047,085,619,398.86/6,686,139.40
  6. Step 6: Final answer
    x = 3,297,431.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.