Home / 13,553,709.81-18,704,119.64-7,442,138.31

Finding the Fourth Proportional to 13,553,709.81, 18,704,119.64 and 7,442,138.31

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Solution

The fourth proportional to 13,553,709.81, 18,704,119.64 and 7,442,138.31 is: 10,270,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553,709.81 : 18,704,119.64 = 7,442,138.31 : x
  2. Step 2: Convert to fraction form
    13,553,709.81/18,704,119.64 = 7,442,138.31/x
  3. Step 3: Cross multiply
    13,553,709.81x = 18,704,119.64 × 7,442,138.31
  4. Step 4: Simplify right side
    13,553,709.81x = 139,198,645,290,456.72
  5. Step 5: Solve for x
    x = 139,198,645,290,456.72/13,553,709.81
  6. Step 6: Final answer
    x = 10,270,150.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.