Home / 12,886,765.44-19,325,498.04-3,786,428.80

Finding the Fourth Proportional to 12,886,765.44, 19,325,498.04 and 3,786,428.80

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Solution

The fourth proportional to 12,886,765.44, 19,325,498.04 and 3,786,428.80 is: 5,678,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,765.44 : 19,325,498.04 = 3,786,428.80 : x
  2. Step 2: Convert to fraction form
    12,886,765.44/19,325,498.04 = 3,786,428.80/x
  3. Step 3: Cross multiply
    12,886,765.44x = 19,325,498.04 × 3,786,428.80
  4. Step 4: Simplify right side
    12,886,765.44x = 73,174,622,352,999.55
  5. Step 5: Solve for x
    x = 73,174,622,352,999.55/12,886,765.44
  6. Step 6: Final answer
    x = 5,678,276.89

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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.