Home / 13,667,421.40-20,524,751.70-7,290,129.40

Finding the Fourth Proportional to 13,667,421.40, 20,524,751.70 and 7,290,129.40

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Solution

The fourth proportional to 13,667,421.40, 20,524,751.70 and 7,290,129.40 is: 10,947,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,421.40 : 20,524,751.70 = 7,290,129.40 : x
  2. Step 2: Convert to fraction form
    13,667,421.40/20,524,751.70 = 7,290,129.40/x
  3. Step 3: Cross multiply
    13,667,421.40x = 20,524,751.70 × 7,290,129.40
  4. Step 4: Simplify right side
    13,667,421.40x = 149,628,095,795,869.97
  5. Step 5: Solve for x
    x = 149,628,095,795,869.97/13,667,421.40
  6. Step 6: Final answer
    x = 10,947,792.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.