Finding the Fourth Proportional to 12,798,468.73, 19,202,538.07 and 7,684,464.47
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Solution
The fourth proportional to 12,798,468.73, 19,202,538.07 and 7,684,464.47 is: 11,529,599.73
Step by Step Solution
- Step 1: Write the proportion equation
12,798,468.73 : 19,202,538.07 = 7,684,464.47 : x - Step 2: Convert to fraction form
12,798,468.73/19,202,538.07 = 7,684,464.47/x - Step 3: Cross multiply
12,798,468.73x = 19,202,538.07 × 7,684,464.47 - Step 4: Simplify right side
12,798,468.73x = 147,561,221,532,737.38 - Step 5: Solve for x
x = 147,561,221,532,737.38/12,798,468.73 - Step 6: Final answer
x = 11,529,599.73
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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.