Home / 12,875,579.29-17,763,904.97-7,979,014.77

Finding the Fourth Proportional to 12,875,579.29, 17,763,904.97 and 7,979,014.77

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Solution

The fourth proportional to 12,875,579.29, 17,763,904.97 and 7,979,014.77 is: 11,008,317.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875,579.29 : 17,763,904.97 = 7,979,014.77 : x
  2. Step 2: Convert to fraction form
    12,875,579.29/17,763,904.97 = 7,979,014.77/x
  3. Step 3: Cross multiply
    12,875,579.29x = 17,763,904.97 × 7,979,014.77
  4. Step 4: Simplify right side
    12,875,579.29x = 141,738,460,088,611.31
  5. Step 5: Solve for x
    x = 141,738,460,088,611.31/12,875,579.29
  6. Step 6: Final answer
    x = 11,008,317.14

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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.