Finding the Fourth Proportional to 10,647,228.80, 15,970,843.20 and 6,395,700.80
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Solution
The fourth proportional to 10,647,228.80, 15,970,843.20 and 6,395,700.80 is: 9,593,551.20
Step by Step Solution
- Step 1: Write the proportion equation
10,647,228.80 : 15,970,843.20 = 6,395,700.80 : x - Step 2: Convert to fraction form
10,647,228.80/15,970,843.20 = 6,395,700.80/x - Step 3: Cross multiply
10,647,228.80x = 15,970,843.20 × 6,395,700.80 - Step 4: Simplify right side
10,647,228.80x = 102,144,734,630,914.55 - Step 5: Solve for x
x = 102,144,734,630,914.55/10,647,228.80 - Step 6: Final answer
x = 9,593,551.20
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1.5x scale
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.