Home / 20,395,148.36-28,144,442.52-11,102,525.24

Finding the Fourth Proportional to 20,395,148.36, 28,144,442.52 and 11,102,525.24

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Solution

The fourth proportional to 20,395,148.36, 28,144,442.52 and 11,102,525.24 is: 15,321,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395,148.36 : 28,144,442.52 = 11,102,525.24 : x
  2. Step 2: Convert to fraction form
    20,395,148.36/28,144,442.52 = 11,102,525.24/x
  3. Step 3: Cross multiply
    20,395,148.36x = 28,144,442.52 × 11,102,525.24
  4. Step 4: Simplify right side
    20,395,148.36x = 312,474,383,303,307
  5. Step 5: Solve for x
    x = 312,474,383,303,307/20,395,148.36
  6. Step 6: Final answer
    x = 15,321,015.46

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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.