Finding the Fourth Proportional to 13,465,915.69, 18,583,082.49 and 7,665,070.99
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Solution
The fourth proportional to 13,465,915.69, 18,583,082.49 and 7,665,070.99 is: 10,577,865.61
Step by Step Solution
- Step 1: Write the proportion equation
13,465,915.69 : 18,583,082.49 = 7,665,070.99 : x - Step 2: Convert to fraction form
13,465,915.69/18,583,082.49 = 7,665,070.99/x - Step 3: Cross multiply
13,465,915.69x = 18,583,082.49 × 7,665,070.99 - Step 4: Simplify right side
13,465,915.69x = 142,440,646,498,875.97 - Step 5: Solve for x
x = 142,440,646,498,875.97/13,465,915.69 - Step 6: Final answer
x = 10,577,865.61
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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.