Finding the Fourth Proportional to 11,243,319.16, 15,515,815.44 and 6,086,668.40
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Solution
The fourth proportional to 11,243,319.16, 15,515,815.44 and 6,086,668.40 is: 8,399,621.34
Step by Step Solution
- Step 1: Write the proportion equation
11,243,319.16 : 15,515,815.44 = 6,086,668.40 : x - Step 2: Convert to fraction form
11,243,319.16/15,515,815.44 = 6,086,668.40/x - Step 3: Cross multiply
11,243,319.16x = 15,515,815.44 × 6,086,668.40 - Step 4: Simplify right side
11,243,319.16x = 94,439,623,538,880.09 - Step 5: Solve for x
x = 94,439,623,538,880.09/11,243,319.16 - Step 6: Final answer
x = 8,399,621.34
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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.