Home / 5,321,442.40-7,980,608.40-1,909,333.60

Finding the Fourth Proportional to 5,321,442.40, 7,980,608.40 and 1,909,333.60

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Solution

The fourth proportional to 5,321,442.40, 7,980,608.40 and 1,909,333.60 is: 2,863,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321,442.40 : 7,980,608.40 = 1,909,333.60 : x
  2. Step 2: Convert to fraction form
    5,321,442.40/7,980,608.40 = 1,909,333.60/x
  3. Step 3: Cross multiply
    5,321,442.40x = 7,980,608.40 × 1,909,333.60
  4. Step 4: Simplify right side
    5,321,442.40x = 15,237,643,766,562.24
  5. Step 5: Solve for x
    x = 15,237,643,766,562.24/5,321,442.40
  6. Step 6: Final answer
    x = 2,863,442.39

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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.