Home / 20,630,284.94-28,470,475.79-11,338,184.37

Finding the Fourth Proportional to 20,630,284.94, 28,470,475.79 and 11,338,184.37

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Solution

The fourth proportional to 20,630,284.94, 28,470,475.79 and 11,338,184.37 is: 15,647,069.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,284.94 : 28,470,475.79 = 11,338,184.37 : x
  2. Step 2: Convert to fraction form
    20,630,284.94/28,470,475.79 = 11,338,184.37/x
  3. Step 3: Cross multiply
    20,630,284.94x = 28,470,475.79 × 11,338,184.37
  4. Step 4: Simplify right side
    20,630,284.94x = 322,803,503,701,232.94
  5. Step 5: Solve for x
    x = 322,803,503,701,232.94/20,630,284.94
  6. Step 6: Final answer
    x = 15,647,069.57

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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.