Home / 13,542,346.28-18,688,760.84-7,741,667.76

Finding the Fourth Proportional to 13,542,346.28, 18,688,760.84 and 7,741,667.76

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Solution

The fourth proportional to 13,542,346.28, 18,688,760.84 and 7,741,667.76 is: 10,683,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542,346.28 : 18,688,760.84 = 7,741,667.76 : x
  2. Step 2: Convert to fraction form
    13,542,346.28/18,688,760.84 = 7,741,667.76/x
  3. Step 3: Cross multiply
    13,542,346.28x = 18,688,760.84 × 7,741,667.76
  4. Step 4: Simplify right side
    13,542,346.28x = 144,682,177,269,378.50
  5. Step 5: Solve for x
    x = 144,682,177,269,378.50/13,542,346.28
  6. Step 6: Final answer
    x = 10,683,686.14

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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.