Home / 12,311,936.40-18,467,904.60-3,791,165.70

Finding the Fourth Proportional to 12,311,936.40, 18,467,904.60 and 3,791,165.70

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Solution

The fourth proportional to 12,311,936.40, 18,467,904.60 and 3,791,165.70 is: 5,686,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311,936.40 : 18,467,904.60 = 3,791,165.70 : x
  2. Step 2: Convert to fraction form
    12,311,936.40/18,467,904.60 = 3,791,165.70/x
  3. Step 3: Cross multiply
    12,311,936.40x = 18,467,904.60 × 3,791,165.70
  4. Step 4: Simplify right side
    12,311,936.40x = 70,014,886,470,392.23
  5. Step 5: Solve for x
    x = 70,014,886,470,392.23/12,311,936.40
  6. Step 6: Final answer
    x = 5,686,748.55

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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.