Home / 12,875,579.79-17,763,905.65-7,979,015.27

Finding the Fourth Proportional to 12,875,579.79, 17,763,905.65 and 7,979,015.27

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Solution

The fourth proportional to 12,875,579.79, 17,763,905.65 and 7,979,015.27 is: 11,008,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875,579.79 : 17,763,905.65 = 7,979,015.27 : x
  2. Step 2: Convert to fraction form
    12,875,579.79/17,763,905.65 = 7,979,015.27/x
  3. Step 3: Cross multiply
    12,875,579.79x = 17,763,905.65 × 7,979,015.27
  4. Step 4: Simplify right side
    12,875,579.79x = 141,738,474,436,189.25
  5. Step 5: Solve for x
    x = 141,738,474,436,189.25/12,875,579.79
  6. Step 6: Final answer
    x = 11,008,317.82

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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.