Home / 5,978,579.60-8,968,744.20-3,138,905.90

Finding the Fourth Proportional to 5,978,579.60, 8,968,744.20 and 3,138,905.90

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Solution

The fourth proportional to 5,978,579.60, 8,968,744.20 and 3,138,905.90 is: 4,708,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,579.60 : 8,968,744.20 = 3,138,905.90 : x
  2. Step 2: Convert to fraction form
    5,978,579.60/8,968,744.20 = 3,138,905.90/x
  3. Step 3: Cross multiply
    5,978,579.60x = 8,968,744.20 × 3,138,905.90
  4. Step 4: Simplify right side
    5,978,579.60x = 28,152,044,084,970.78
  5. Step 5: Solve for x
    x = 28,152,044,084,970.78/5,978,579.60
  6. Step 6: Final answer
    x = 4,708,818.14

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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.