Home / 5,211,310.40-7,816,588.80-1,616,985.60

Finding the Fourth Proportional to 5,211,310.40, 7,816,588.80 and 1,616,985.60

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Solution

The fourth proportional to 5,211,310.40, 7,816,588.80 and 1,616,985.60 is: 2,425,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211,310.40 : 7,816,588.80 = 1,616,985.60 : x
  2. Step 2: Convert to fraction form
    5,211,310.40/7,816,588.80 = 1,616,985.60/x
  3. Step 3: Cross multiply
    5,211,310.40x = 7,816,588.80 × 1,616,985.60
  4. Step 4: Simplify right side
    5,211,310.40x = 12,639,311,530,721.28
  5. Step 5: Solve for x
    x = 12,639,311,530,721.28/5,211,310.40
  6. Step 6: Final answer
    x = 2,425,361.49

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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.