Home / 2,885,974.11-3,980,909.03-1,905,922.15

Finding the Fourth Proportional to 2,885,974.11, 3,980,909.03 and 1,905,922.15

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Solution

The fourth proportional to 2,885,974.11, 3,980,909.03 and 1,905,922.15 is: 2,629,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885,974.11 : 3,980,909.03 = 1,905,922.15 : x
  2. Step 2: Convert to fraction form
    2,885,974.11/3,980,909.03 = 1,905,922.15/x
  3. Step 3: Cross multiply
    2,885,974.11x = 3,980,909.03 × 1,905,922.15
  4. Step 4: Simplify right side
    2,885,974.11x = 7,587,302,700,322.74
  5. Step 5: Solve for x
    x = 7,587,302,700,322.74/2,885,974.11
  6. Step 6: Final answer
    x = 2,629,026.60

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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.