Home / 6,436,128.40-9,651,341.40-2,175,139.60

Finding the Fourth Proportional to 6,436,128.40, 9,651,341.40 and 2,175,139.60

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Solution

The fourth proportional to 6,436,128.40, 9,651,341.40 and 2,175,139.60 is: 3,261,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436,128.40 : 9,651,341.40 = 2,175,139.60 : x
  2. Step 2: Convert to fraction form
    6,436,128.40/9,651,341.40 = 2,175,139.60/x
  3. Step 3: Cross multiply
    6,436,128.40x = 9,651,341.40 × 2,175,139.60
  4. Step 4: Simplify right side
    6,436,128.40x = 20,993,014,872,259.44
  5. Step 5: Solve for x
    x = 20,993,014,872,259.44/6,436,128.40
  6. Step 6: Final answer
    x = 3,261,745.81

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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.