Finding the Fourth Proportional to 12,805,531.68, 19,208,329.98 and 5,232,497.52
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Solution
The fourth proportional to 12,805,531.68, 19,208,329.98 and 5,232,497.52 is: 7,848,759.54
Step by Step Solution
- Step 1: Write the proportion equation
12,805,531.68 : 19,208,329.98 = 5,232,497.52 : x - Step 2: Convert to fraction form
12,805,531.68/19,208,329.98 = 5,232,497.52/x - Step 3: Cross multiply
12,805,531.68x = 19,208,329.98 × 5,232,497.52 - Step 4: Simplify right side
12,805,531.68x = 100,507,538,983,691.64 - Step 5: Solve for x
x = 100,507,538,983,691.64/12,805,531.68 - Step 6: Final answer
x = 7,848,759.54
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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.