Finding the Fourth Proportional to 5,430,688.79, 8,149,396.91 and 3,157,283.05
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Solution
The fourth proportional to 5,430,688.79, 8,149,396.91 and 3,157,283.05 is: 4,737,880.17
Step by Step Solution
- Step 1: Write the proportion equation
5,430,688.79 : 8,149,396.91 = 3,157,283.05 : x - Step 2: Convert to fraction form
5,430,688.79/8,149,396.91 = 3,157,283.05/x - Step 3: Cross multiply
5,430,688.79x = 8,149,396.91 × 3,157,283.05 - Step 4: Simplify right side
5,430,688.79x = 25,729,952,695,505.47 - Step 5: Solve for x
x = 25,729,952,695,505.47/5,430,688.79 - Step 6: Final answer
x = 4,737,880.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.