Home / 13,318,021.02-18,378,954.87-7,810,274.94

Finding the Fourth Proportional to 13,318,021.02, 18,378,954.87 and 7,810,274.94

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Solution

The fourth proportional to 13,318,021.02, 18,378,954.87 and 7,810,274.94 is: 10,778,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318,021.02 : 18,378,954.87 = 7,810,274.94 : x
  2. Step 2: Convert to fraction form
    13,318,021.02/18,378,954.87 = 7,810,274.94/x
  3. Step 3: Cross multiply
    13,318,021.02x = 18,378,954.87 × 7,810,274.94
  4. Step 4: Simplify right side
    13,318,021.02x = 143,544,690,644,551.97
  5. Step 5: Solve for x
    x = 143,544,690,644,551.97/13,318,021.02
  6. Step 6: Final answer
    x = 10,778,229.77

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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.