Finding the Fourth Proportional to 10,137,982.08, 13,990,800.96 and 5,787,776.64
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Solution
The fourth proportional to 10,137,982.08, 13,990,800.96 and 5,787,776.64 is: 7,987,351.95
Step by Step Solution
- Step 1: Write the proportion equation
10,137,982.08 : 13,990,800.96 = 5,787,776.64 : x - Step 2: Convert to fraction form
10,137,982.08/13,990,800.96 = 5,787,776.64/x - Step 3: Cross multiply
10,137,982.08x = 13,990,800.96 × 5,787,776.64 - Step 4: Simplify right side
10,137,982.08x = 80,975,630,971,177.58 - Step 5: Solve for x
x = 80,975,630,971,177.58/10,137,982.08 - Step 6: Final answer
x = 7,987,351.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.