Finding the Fourth Proportional to 178,626,438.50, 267,938,907.99 and 69,527,690.78
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Solution
The fourth proportional to 178,626,438.50, 267,938,907.99 and 69,527,690.78 is: 104,291,244.34
Step by Step Solution
- Step 1: Write the proportion equation
178,626,438.50 : 267,938,907.99 = 69,527,690.78 : x - Step 2: Convert to fraction form
178,626,438.50/267,938,907.99 = 69,527,690.78/x - Step 3: Cross multiply
178,626,438.50x = 267,938,907.99 × 69,527,690.78 - Step 4: Simplify right side
178,626,438.50x = 18,629,173,542,659,592 - Step 5: Solve for x
x = 18,629,173,542,659,592/178,626,438.50 - Step 6: Final answer
x = 104,291,244.34
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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.