Home / 6,520,619.80-9,780,492.30-1,728,206.20

Finding the Fourth Proportional to 6,520,619.80, 9,780,492.30 and 1,728,206.20

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Solution

The fourth proportional to 6,520,619.80, 9,780,492.30 and 1,728,206.20 is: 2,592,193.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520,619.80 : 9,780,492.30 = 1,728,206.20 : x
  2. Step 2: Convert to fraction form
    6,520,619.80/9,780,492.30 = 1,728,206.20/x
  3. Step 3: Cross multiply
    6,520,619.80x = 9,780,492.30 × 1,728,206.20
  4. Step 4: Simplify right side
    6,520,619.80x = 16,902,707,431,912.26
  5. Step 5: Solve for x
    x = 16,902,707,431,912.26/6,520,619.80
  6. Step 6: Final answer
    x = 2,592,193.37

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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.