Home / 13,765,037.40-18,990,375.48-7,881,527.34

Finding the Fourth Proportional to 13,765,037.40, 18,990,375.48 and 7,881,527.34

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Solution

The fourth proportional to 13,765,037.40, 18,990,375.48 and 7,881,527.34 is: 10,873,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765,037.40 : 18,990,375.48 = 7,881,527.34 : x
  2. Step 2: Convert to fraction form
    13,765,037.40/18,990,375.48 = 7,881,527.34/x
  3. Step 3: Cross multiply
    13,765,037.40x = 18,990,375.48 × 7,881,527.34
  4. Step 4: Simplify right side
    13,765,037.40x = 149,673,163,542,485.62
  5. Step 5: Solve for x
    x = 149,673,163,542,485.62/13,765,037.40
  6. Step 6: Final answer
    x = 10,873,429.49

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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.