Home / 13,103,178.42-18,081,634.01-7,520,243.10

Finding the Fourth Proportional to 13,103,178.42, 18,081,634.01 and 7,520,243.10

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Solution

The fourth proportional to 13,103,178.42, 18,081,634.01 and 7,520,243.10 is: 10,377,503.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,178.42 : 18,081,634.01 = 7,520,243.10 : x
  2. Step 2: Convert to fraction form
    13,103,178.42/18,081,634.01 = 7,520,243.10/x
  3. Step 3: Cross multiply
    13,103,178.42x = 18,081,634.01 × 7,520,243.10
  4. Step 4: Simplify right side
    13,103,178.42x = 135,978,283,400,427.84
  5. Step 5: Solve for x
    x = 135,978,283,400,427.84/13,103,178.42
  6. Step 6: Final answer
    x = 10,377,503.77

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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.