Home / 9,171,828.60-13,757,742.90-5,190,516.60

Finding the Fourth Proportional to 9,171,828.60, 13,757,742.90 and 5,190,516.60

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Solution

The fourth proportional to 9,171,828.60, 13,757,742.90 and 5,190,516.60 is: 7,785,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171,828.60 : 13,757,742.90 = 5,190,516.60 : x
  2. Step 2: Convert to fraction form
    9,171,828.60/13,757,742.90 = 5,190,516.60/x
  3. Step 3: Cross multiply
    9,171,828.60x = 13,757,742.90 × 5,190,516.60
  4. Step 4: Simplify right side
    9,171,828.60x = 71,409,792,900,982.14
  5. Step 5: Solve for x
    x = 71,409,792,900,982.14/9,171,828.60
  6. Step 6: Final answer
    x = 7,785,774.90

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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.