Home / 13,390,722.70-18,481,216.35-8,166,763.24

Finding the Fourth Proportional to 13,390,722.70, 18,481,216.35 and 8,166,763.24

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Solution

The fourth proportional to 13,390,722.70, 18,481,216.35 and 8,166,763.24 is: 11,271,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,722.70 : 18,481,216.35 = 8,166,763.24 : x
  2. Step 2: Convert to fraction form
    13,390,722.70/18,481,216.35 = 8,166,763.24/x
  3. Step 3: Cross multiply
    13,390,722.70x = 18,481,216.35 × 8,166,763.24
  4. Step 4: Simplify right side
    13,390,722.70x = 150,931,718,317,667
  5. Step 5: Solve for x
    x = 150,931,718,317,667/13,390,722.70
  6. Step 6: Final answer
    x = 11,271,364.64

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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.