Finding the Fourth Proportional to 5,538,356.62, 8,307,468.09 and 1,439,314.63
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Solution
The fourth proportional to 5,538,356.62, 8,307,468.09 and 1,439,314.63 is: 2,158,954.57
Step by Step Solution
- Step 1: Write the proportion equation
5,538,356.62 : 8,307,468.09 = 1,439,314.63 : x - Step 2: Convert to fraction form
5,538,356.62/8,307,468.09 = 1,439,314.63/x - Step 3: Cross multiply
5,538,356.62x = 8,307,468.09 × 1,439,314.63 - Step 4: Simplify right side
5,538,356.62x = 11,957,060,360,195.16 - Step 5: Solve for x
x = 11,957,060,360,195.16/5,538,356.62 - Step 6: Final answer
x = 2,158,954.57
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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.