Home / 5,978,579.10-8,968,743.45-3,138,905.40

Finding the Fourth Proportional to 5,978,579.10, 8,968,743.45 and 3,138,905.40

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Solution

The fourth proportional to 5,978,579.10, 8,968,743.45 and 3,138,905.40 is: 4,708,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,579.10 : 8,968,743.45 = 3,138,905.40 : x
  2. Step 2: Convert to fraction form
    5,978,579.10/8,968,743.45 = 3,138,905.40/x
  3. Step 3: Cross multiply
    5,978,579.10x = 8,968,743.45 × 3,138,905.40
  4. Step 4: Simplify right side
    5,978,579.10x = 28,152,037,246,419.62
  5. Step 5: Solve for x
    x = 28,152,037,246,419.62/5,978,579.10
  6. Step 6: Final answer
    x = 4,708,817.39

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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.