Finding the Fourth Proportional to 5,137,060.42, 7,089,257.87 and 2,931,878.97
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Solution
The fourth proportional to 5,137,060.42, 7,089,257.87 and 2,931,878.97 is: 4,046,058.32
Step by Step Solution
- Step 1: Write the proportion equation
5,137,060.42 : 7,089,257.87 = 2,931,878.97 : x - Step 2: Convert to fraction form
5,137,060.42/7,089,257.87 = 2,931,878.97/x - Step 3: Cross multiply
5,137,060.42x = 7,089,257.87 × 2,931,878.97 - Step 4: Simplify right side
5,137,060.42x = 20,784,846,061,960.00 - Step 5: Solve for x
x = 20,784,846,061,960.00/5,137,060.42 - Step 6: Final answer
x = 4,046,058.32
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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.