Home / 13,724,198.40-18,939,028.32-7,922,784

Finding the Fourth Proportional to 13,724,198.40, 18,939,028.32 and 7,922,784

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Solution

The fourth proportional to 13,724,198.40, 18,939,028.32 and 7,922,784 is: 10,933,230.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724,198.40 : 18,939,028.32 = 7,922,784 : x
  2. Step 2: Convert to fraction form
    13,724,198.40/18,939,028.32 = 7,922,784/x
  3. Step 3: Cross multiply
    13,724,198.40x = 18,939,028.32 × 7,922,784
  4. Step 4: Simplify right side
    13,724,198.40x = 150,049,830,549,242.88
  5. Step 5: Solve for x
    x = 150,049,830,549,242.88/13,724,198.40
  6. Step 6: Final answer
    x = 10,933,230.94

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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.