Home / 20,458,825.92-28,233,040.86-11,291,468.67

Finding the Fourth Proportional to 20,458,825.92, 28,233,040.86 and 11,291,468.67

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Solution

The fourth proportional to 20,458,825.92, 28,233,040.86 and 11,291,468.67 is: 15,582,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,825.92 : 28,233,040.86 = 11,291,468.67 : x
  2. Step 2: Convert to fraction form
    20,458,825.92/28,233,040.86 = 11,291,468.67/x
  3. Step 3: Cross multiply
    20,458,825.92x = 28,233,040.86 × 11,291,468.67
  4. Step 4: Simplify right side
    20,458,825.92x = 318,792,496,329,519.88
  5. Step 5: Solve for x
    x = 318,792,496,329,519.88/20,458,825.92
  6. Step 6: Final answer
    x = 15,582,150.10

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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.