Home / 4,207,642.80-6,315,611.40-2,080,129.20

Finding the Fourth Proportional to 4,207,642.80, 6,315,611.40 and 2,080,129.20

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Solution

The fourth proportional to 4,207,642.80, 6,315,611.40 and 2,080,129.20 is: 3,122,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207,642.80 : 6,315,611.40 = 2,080,129.20 : x
  2. Step 2: Convert to fraction form
    4,207,642.80/6,315,611.40 = 2,080,129.20/x
  3. Step 3: Cross multiply
    4,207,642.80x = 6,315,611.40 × 2,080,129.20
  4. Step 4: Simplify right side
    4,207,642.80x = 13,137,287,688,992.88
  5. Step 5: Solve for x
    x = 13,137,287,688,992.88/4,207,642.80
  6. Step 6: Final answer
    x = 3,122,244.05

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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.