Home / 13,667,129.45-18,861,032.28-7,555,951.61

Finding the Fourth Proportional to 13,667,129.45, 18,861,032.28 and 7,555,951.61

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Solution

The fourth proportional to 13,667,129.45, 18,861,032.28 and 7,555,951.61 is: 10,427,430.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,129.45 : 18,861,032.28 = 7,555,951.61 : x
  2. Step 2: Convert to fraction form
    13,667,129.45/18,861,032.28 = 7,555,951.61/x
  3. Step 3: Cross multiply
    13,667,129.45x = 18,861,032.28 × 7,555,951.61
  4. Step 4: Simplify right side
    13,667,129.45x = 142,513,047,128,022.81
  5. Step 5: Solve for x
    x = 142,513,047,128,022.81/13,667,129.45
  6. Step 6: Final answer
    x = 10,427,430.84

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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.