Home / 5,429,286.89-8,142,121.93-2,189,987.95

Finding the Fourth Proportional to 5,429,286.89, 8,142,121.93 and 2,189,987.95

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Solution

The fourth proportional to 5,429,286.89, 8,142,121.93 and 2,189,987.95 is: 3,284,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,286.89 : 8,142,121.93 = 2,189,987.95 : x
  2. Step 2: Convert to fraction form
    5,429,286.89/8,142,121.93 = 2,189,987.95/x
  3. Step 3: Cross multiply
    5,429,286.89x = 8,142,121.93 × 2,189,987.95
  4. Step 4: Simplify right side
    5,429,286.89x = 17,831,148,914,130.75
  5. Step 5: Solve for x
    x = 17,831,148,914,130.75/5,429,286.89
  6. Step 6: Final answer
    x = 3,284,252.48

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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.