Finding the Fourth Proportional to 20,260,244.93, 27,961,926.12 and 12,424,442.63
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Solution
The fourth proportional to 20,260,244.93, 27,961,926.12 and 12,424,442.63 is: 17,147,440.62
Step by Step Solution
- Step 1: Write the proportion equation
20,260,244.93 : 27,961,926.12 = 12,424,442.63 : x - Step 2: Convert to fraction form
20,260,244.93/27,961,926.12 = 12,424,442.63/x - Step 3: Cross multiply
20,260,244.93x = 27,961,926.12 × 12,424,442.63 - Step 4: Simplify right side
20,260,244.93x = 347,411,346,762,428.88 - Step 5: Solve for x
x = 347,411,346,762,428.88/20,260,244.93 - Step 6: Final answer
x = 17,147,440.62
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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.