Home / 13,991,673.94-20,999,473.80-5,477,989.12

Finding the Fourth Proportional to 13,991,673.94, 20,999,473.80 and 5,477,989.12

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Solution

The fourth proportional to 13,991,673.94, 20,999,473.80 and 5,477,989.12 is: 8,221,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991,673.94 : 20,999,473.80 = 5,477,989.12 : x
  2. Step 2: Convert to fraction form
    13,991,673.94/20,999,473.80 = 5,477,989.12/x
  3. Step 3: Cross multiply
    13,991,673.94x = 20,999,473.80 × 5,477,989.12
  4. Step 4: Simplify right side
    13,991,673.94x = 115,034,889,002,125.06
  5. Step 5: Solve for x
    x = 115,034,889,002,125.06/13,991,673.94
  6. Step 6: Final answer
    x = 8,221,667.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.