Home / 12,751,986.60-19,127,979.90-5,184,383.40

Finding the Fourth Proportional to 12,751,986.60, 19,127,979.90 and 5,184,383.40

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Solution

The fourth proportional to 12,751,986.60, 19,127,979.90 and 5,184,383.40 is: 7,776,575.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751,986.60 : 19,127,979.90 = 5,184,383.40 : x
  2. Step 2: Convert to fraction form
    12,751,986.60/19,127,979.90 = 5,184,383.40/x
  3. Step 3: Cross multiply
    12,751,986.60x = 19,127,979.90 × 5,184,383.40
  4. Step 4: Simplify right side
    12,751,986.60x = 99,166,781,469,093.66
  5. Step 5: Solve for x
    x = 99,166,781,469,093.66/12,751,986.60
  6. Step 6: Final answer
    x = 7,776,575.10

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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.