Home / 18,243,036.81-25,202,735.64-11,978,426.93

Finding the Fourth Proportional to 18,243,036.81, 25,202,735.64 and 11,978,426.93

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Solution

The fourth proportional to 18,243,036.81, 25,202,735.64 and 11,978,426.93 is: 16,548,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243,036.81 : 25,202,735.64 = 11,978,426.93 : x
  2. Step 2: Convert to fraction form
    18,243,036.81/25,202,735.64 = 11,978,426.93/x
  3. Step 3: Cross multiply
    18,243,036.81x = 25,202,735.64 × 11,978,426.93
  4. Step 4: Simplify right side
    18,243,036.81x = 301,889,127,173,833.12
  5. Step 5: Solve for x
    x = 301,889,127,173,833.12/18,243,036.81
  6. Step 6: Final answer
    x = 16,548,183.85

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1.5x scale

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.