Finding the Fourth Proportional to 7,877,114.70, 11,815,672.05 and 6,282,791.70
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Solution
The fourth proportional to 7,877,114.70, 11,815,672.05 and 6,282,791.70 is: 9,424,187.55
Step by Step Solution
- Step 1: Write the proportion equation
7,877,114.70 : 11,815,672.05 = 6,282,791.70 : x - Step 2: Convert to fraction form
7,877,114.70/11,815,672.05 = 6,282,791.70/x - Step 3: Cross multiply
7,877,114.70x = 11,815,672.05 × 6,282,791.70 - Step 4: Simplify right side
7,877,114.70x = 74,235,406,285,661.98 - Step 5: Solve for x
x = 74,235,406,285,661.98/7,877,114.70 - Step 6: Final answer
x = 9,424,187.55
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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.