Home / 3,190,870.40-4,394,443.20-3,121,197.44

Finding the Fourth Proportional to 3,190,870.40, 4,394,443.20 and 3,121,197.44

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Solution

The fourth proportional to 3,190,870.40, 4,394,443.20 and 3,121,197.44 is: 4,298,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190,870.40 : 4,394,443.20 = 3,121,197.44 : x
  2. Step 2: Convert to fraction form
    3,190,870.40/4,394,443.20 = 3,121,197.44/x
  3. Step 3: Cross multiply
    3,190,870.40x = 4,394,443.20 × 3,121,197.44
  4. Step 4: Simplify right side
    3,190,870.40x = 13,715,924,866,065.41
  5. Step 5: Solve for x
    x = 13,715,924,866,065.41/3,190,870.40
  6. Step 6: Final answer
    x = 4,298,490.11

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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.