Finding the Fourth Proportional to 12,121,915.97, 18,182,431.09 and 3,602,031.01
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Solution
The fourth proportional to 12,121,915.97, 18,182,431.09 and 3,602,031.01 is: 5,402,914.92
Step by Step Solution
- Step 1: Write the proportion equation
12,121,915.97 : 18,182,431.09 = 3,602,031.01 : x - Step 2: Convert to fraction form
12,121,915.97/18,182,431.09 = 3,602,031.01/x - Step 3: Cross multiply
12,121,915.97x = 18,182,431.09 × 3,602,031.01 - Step 4: Simplify right side
12,121,915.97x = 65,493,680,623,368.09 - Step 5: Solve for x
x = 65,493,680,623,368.09/12,121,915.97 - Step 6: Final answer
x = 5,402,914.92
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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.