Home / 13,305,975.53-18,362,139.28-7,724,739.92

Finding the Fourth Proportional to 13,305,975.53, 18,362,139.28 and 7,724,739.92

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Solution

The fourth proportional to 13,305,975.53, 18,362,139.28 and 7,724,739.92 is: 10,660,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305,975.53 : 18,362,139.28 = 7,724,739.92 : x
  2. Step 2: Convert to fraction form
    13,305,975.53/18,362,139.28 = 7,724,739.92/x
  3. Step 3: Cross multiply
    13,305,975.53x = 18,362,139.28 × 7,724,739.92
  4. Step 4: Simplify right side
    13,305,975.53x = 141,842,750,201,693.50
  5. Step 5: Solve for x
    x = 141,842,750,201,693.50/13,305,975.53
  6. Step 6: Final answer
    x = 10,660,078.99

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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.