Finding the Fourth Proportional to 19,431,467.55, 29,133,915.30 and 9,201,228.30
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Solution
The fourth proportional to 19,431,467.55, 29,133,915.30 and 9,201,228.30 is: 13,795,551.22
Step by Step Solution
- Step 1: Write the proportion equation
19,431,467.55 : 29,133,915.30 = 9,201,228.30 : x - Step 2: Convert to fraction form
19,431,467.55/29,133,915.30 = 9,201,228.30/x - Step 3: Cross multiply
19,431,467.55x = 29,133,915.30 × 9,201,228.30 - Step 4: Simplify right side
19,431,467.55x = 268,067,805,948,163.03 - Step 5: Solve for x
x = 268,067,805,948,163.03/19,431,467.55 - Step 6: Final answer
x = 13,795,551.22
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1.5x scale
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.