Home / 31,186,749.60-43,035,529.64-18,133,082.42

Finding the Fourth Proportional to 31,186,749.60, 43,035,529.64 and 18,133,082.42

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Solution

The fourth proportional to 31,186,749.60, 43,035,529.64 and 18,133,082.42 is: 25,022,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186,749.60 : 43,035,529.64 = 18,133,082.42 : x
  2. Step 2: Convert to fraction form
    31,186,749.60/43,035,529.64 = 18,133,082.42/x
  3. Step 3: Cross multiply
    31,186,749.60x = 43,035,529.64 × 18,133,082.42
  4. Step 4: Simplify right side
    31,186,749.60x = 780,366,805,644,629.75
  5. Step 5: Solve for x
    x = 780,366,805,644,629.75/31,186,749.60
  6. Step 6: Final answer
    x = 25,022,383.40

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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.