Finding the Fourth Proportional to 10,691,328.36, 14,739,760.44 and 8,493,483.54
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Solution
The fourth proportional to 10,691,328.36, 14,739,760.44 and 8,493,483.54 is: 11,709,668.66
Step by Step Solution
- Step 1: Write the proportion equation
10,691,328.36 : 14,739,760.44 = 8,493,483.54 : x - Step 2: Convert to fraction form
10,691,328.36/14,739,760.44 = 8,493,483.54/x - Step 3: Cross multiply
10,691,328.36x = 14,739,760.44 × 8,493,483.54 - Step 4: Simplify right side
10,691,328.36x = 125,191,912,680,683.14 - Step 5: Solve for x
x = 125,191,912,680,683.14/10,691,328.36 - Step 6: Final answer
x = 11,709,668.66
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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.