Home / 13,390,720.20-18,481,212.90-8,166,760.74

Finding the Fourth Proportional to 13,390,720.20, 18,481,212.90 and 8,166,760.74

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Solution

The fourth proportional to 13,390,720.20, 18,481,212.90 and 8,166,760.74 is: 11,271,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,720.20 : 18,481,212.90 = 8,166,760.74 : x
  2. Step 2: Convert to fraction form
    13,390,720.20/18,481,212.90 = 8,166,760.74/x
  3. Step 3: Cross multiply
    13,390,720.20x = 18,481,212.90 × 8,166,760.74
  4. Step 4: Simplify right side
    13,390,720.20x = 150,931,643,939,301.53
  5. Step 5: Solve for x
    x = 150,931,643,939,301.53/13,390,720.20
  6. Step 6: Final answer
    x = 11,271,361.19

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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.