Home / 5,129,679-7,081,782.30-3,840,055.32

Finding the Fourth Proportional to 5,129,679, 7,081,782.30 and 3,840,055.32

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Solution

The fourth proportional to 5,129,679, 7,081,782.30 and 3,840,055.32 is: 5,301,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129,679 : 7,081,782.30 = 3,840,055.32 : x
  2. Step 2: Convert to fraction form
    5,129,679/7,081,782.30 = 3,840,055.32/x
  3. Step 3: Cross multiply
    5,129,679x = 7,081,782.30 × 3,840,055.32
  4. Step 4: Simplify right side
    5,129,679x = 27,194,435,796,196.84
  5. Step 5: Solve for x
    x = 27,194,435,796,196.84/5,129,679
  6. Step 6: Final answer
    x = 5,301,391.33

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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.