Home / 20,494,858.59-28,282,880.89-11,202,489.69

Finding the Fourth Proportional to 20,494,858.59, 28,282,880.89 and 11,202,489.69

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Solution

The fourth proportional to 20,494,858.59, 28,282,880.89 and 11,202,489.69 is: 15,459,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494,858.59 : 28,282,880.89 = 11,202,489.69 : x
  2. Step 2: Convert to fraction form
    20,494,858.59/28,282,880.89 = 11,202,489.69/x
  3. Step 3: Cross multiply
    20,494,858.59x = 28,282,880.89 × 11,202,489.69
  4. Step 4: Simplify right side
    20,494,858.59x = 316,838,681,545,716.75
  5. Step 5: Solve for x
    x = 316,838,681,545,716.75/20,494,858.59
  6. Step 6: Final answer
    x = 15,459,422.67

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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.