Finding the Fourth Proportional to 7,276,687.20, 10,908,032.40 and 5,656,557.60
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Solution
The fourth proportional to 7,276,687.20, 10,908,032.40 and 5,656,557.60 is: 8,479,396.17
Step by Step Solution
- Step 1: Write the proportion equation
7,276,687.20 : 10,908,032.40 = 5,656,557.60 : x - Step 2: Convert to fraction form
7,276,687.20/10,908,032.40 = 5,656,557.60/x - Step 3: Cross multiply
7,276,687.20x = 10,908,032.40 × 5,656,557.60 - Step 4: Simplify right side
7,276,687.20x = 61,701,913,573,266.23 - Step 5: Solve for x
x = 61,701,913,573,266.23/7,276,687.20 - Step 6: Final answer
x = 8,479,396.17
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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.