Home / 2,885,968.20-3,980,900.87-1,905,916.26

Finding the Fourth Proportional to 2,885,968.20, 3,980,900.87 and 1,905,916.26

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Solution

The fourth proportional to 2,885,968.20, 3,980,900.87 and 1,905,916.26 is: 2,629,018.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885,968.20 : 3,980,900.87 = 1,905,916.26 : x
  2. Step 2: Convert to fraction form
    2,885,968.20/3,980,900.87 = 1,905,916.26/x
  3. Step 3: Cross multiply
    2,885,968.20x = 3,980,900.87 × 1,905,916.26
  4. Step 4: Simplify right side
    2,885,968.20x = 7,587,263,720,847.91
  5. Step 5: Solve for x
    x = 7,587,263,720,847.91/2,885,968.20
  6. Step 6: Final answer
    x = 2,629,018.47

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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.