Finding the Fourth Proportional to 6,770,228.81, 9,342,915.69 and 3,869,681.99
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Solution
The fourth proportional to 6,770,228.81, 9,342,915.69 and 3,869,681.99 is: 5,340,161.11
Step by Step Solution
- Step 1: Write the proportion equation
6,770,228.81 : 9,342,915.69 = 3,869,681.99 : x - Step 2: Convert to fraction form
6,770,228.81/9,342,915.69 = 3,869,681.99/x - Step 3: Cross multiply
6,770,228.81x = 9,342,915.69 × 3,869,681.99 - Step 4: Simplify right side
6,770,228.81x = 36,154,112,579,681.42 - Step 5: Solve for x
x = 36,154,112,579,681.42/6,770,228.81 - Step 6: Final answer
x = 5,340,161.11
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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.