Home / 5,384,489.80-8,076,734.70-2,191,907.20

Finding the Fourth Proportional to 5,384,489.80, 8,076,734.70 and 2,191,907.20

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Solution

The fourth proportional to 5,384,489.80, 8,076,734.70 and 2,191,907.20 is: 3,287,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384,489.80 : 8,076,734.70 = 2,191,907.20 : x
  2. Step 2: Convert to fraction form
    5,384,489.80/8,076,734.70 = 2,191,907.20/x
  3. Step 3: Cross multiply
    5,384,489.80x = 8,076,734.70 × 2,191,907.20
  4. Step 4: Simplify right side
    5,384,489.80x = 17,703,452,941,419.84
  5. Step 5: Solve for x
    x = 17,703,452,941,419.84/5,384,489.80
  6. Step 6: Final answer
    x = 3,287,860.80

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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.