Home / 13,282,142.42-18,333,942.24-7,777,286.63

Finding the Fourth Proportional to 13,282,142.42, 18,333,942.24 and 7,777,286.63

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Solution

The fourth proportional to 13,282,142.42, 18,333,942.24 and 7,777,286.63 is: 10,735,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282,142.42 : 18,333,942.24 = 7,777,286.63 : x
  2. Step 2: Convert to fraction form
    13,282,142.42/18,333,942.24 = 7,777,286.63/x
  3. Step 3: Cross multiply
    13,282,142.42x = 18,333,942.24 × 7,777,286.63
  4. Step 4: Simplify right side
    13,282,142.42x = 142,588,323,819,457.81
  5. Step 5: Solve for x
    x = 142,588,323,819,457.81/13,282,142.42
  6. Step 6: Final answer
    x = 10,735,340.68

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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.