Home / 20,630,286.53-28,470,477.99-11,338,185.97

Finding the Fourth Proportional to 20,630,286.53, 28,470,477.99 and 11,338,185.97

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Solution

The fourth proportional to 20,630,286.53, 28,470,477.99 and 11,338,185.97 is: 15,647,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,286.53 : 28,470,477.99 = 11,338,185.97 : x
  2. Step 2: Convert to fraction form
    20,630,286.53/28,470,477.99 = 11,338,185.97/x
  3. Step 3: Cross multiply
    20,630,286.53x = 28,470,477.99 × 11,338,185.97
  4. Step 4: Simplify right side
    20,630,286.53x = 322,803,574,105,411.81
  5. Step 5: Solve for x
    x = 322,803,574,105,411.81/20,630,286.53
  6. Step 6: Final answer
    x = 15,647,071.78

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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.