Finding the Fourth Proportional to 5,610,915.78, 7,742,908.49 and 3,163,505.13
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Solution
The fourth proportional to 5,610,915.78, 7,742,908.49 and 3,163,505.13 is: 4,365,549.53
Step by Step Solution
- Step 1: Write the proportion equation
5,610,915.78 : 7,742,908.49 = 3,163,505.13 : x - Step 2: Convert to fraction form
5,610,915.78/7,742,908.49 = 3,163,505.13/x - Step 3: Cross multiply
5,610,915.78x = 7,742,908.49 × 3,163,505.13 - Step 4: Simplify right side
5,610,915.78x = 24,494,730,729,235.55 - Step 5: Solve for x
x = 24,494,730,729,235.55/5,610,915.78 - Step 6: Final answer
x = 4,365,549.53
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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.