Home / 12,781,131.40-19,171,794.30-4,261,454.20

Finding the Fourth Proportional to 12,781,131.40, 19,171,794.30 and 4,261,454.20

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Solution

The fourth proportional to 12,781,131.40, 19,171,794.30 and 4,261,454.20 is: 6,392,213.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,131.40 : 19,171,794.30 = 4,261,454.20 : x
  2. Step 2: Convert to fraction form
    12,781,131.40/19,171,794.30 = 4,261,454.20/x
  3. Step 3: Cross multiply
    12,781,131.40x = 19,171,794.30 × 4,261,454.20
  4. Step 4: Simplify right side
    12,781,131.40x = 81,699,723,341,271.06
  5. Step 5: Solve for x
    x = 81,699,723,341,271.06/12,781,131.40
  6. Step 6: Final answer
    x = 6,392,213.71

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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.