Finding the Fourth Proportional to 7,791,915.14, 11,690,497.12 and 4,909,935.14
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Solution
The fourth proportional to 7,791,915.14, 11,690,497.12 and 4,909,935.14 is: 7,366,556.43
Step by Step Solution
- Step 1: Write the proportion equation
7,791,915.14 : 11,690,497.12 = 4,909,935.14 : x - Step 2: Convert to fraction form
7,791,915.14/11,690,497.12 = 4,909,935.14/x - Step 3: Cross multiply
7,791,915.14x = 11,690,497.12 × 4,909,935.14 - Step 4: Simplify right side
7,791,915.14x = 57,399,582,613,556.79 - Step 5: Solve for x
x = 57,399,582,613,556.79/7,791,915.14 - Step 6: Final answer
x = 7,366,556.43
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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.