Home / 3,145,248.21-4,709,867.90-2,078,692.05

Finding the Fourth Proportional to 3,145,248.21, 4,709,867.90 and 2,078,692.05

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Solution

The fourth proportional to 3,145,248.21, 4,709,867.90 and 2,078,692.05 is: 3,112,747.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,248.21 : 4,709,867.90 = 2,078,692.05 : x
  2. Step 2: Convert to fraction form
    3,145,248.21/4,709,867.90 = 2,078,692.05/x
  3. Step 3: Cross multiply
    3,145,248.21x = 4,709,867.90 × 2,078,692.05
  4. Step 4: Simplify right side
    3,145,248.21x = 9,790,364,949,886.74
  5. Step 5: Solve for x
    x = 9,790,364,949,886.74/3,145,248.21
  6. Step 6: Final answer
    x = 3,112,747.96

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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.