Home / 5,400,564.70-8,100,847.05-4,989,991.90

Finding the Fourth Proportional to 5,400,564.70, 8,100,847.05 and 4,989,991.90

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Solution

The fourth proportional to 5,400,564.70, 8,100,847.05 and 4,989,991.90 is: 7,484,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400,564.70 : 8,100,847.05 = 4,989,991.90 : x
  2. Step 2: Convert to fraction form
    5,400,564.70/8,100,847.05 = 4,989,991.90/x
  3. Step 3: Cross multiply
    5,400,564.70x = 8,100,847.05 × 4,989,991.90
  4. Step 4: Simplify right side
    5,400,564.70x = 40,423,161,162,638.90
  5. Step 5: Solve for x
    x = 40,423,161,162,638.90/5,400,564.70
  6. Step 6: Final answer
    x = 7,484,987.85

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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.