Finding the Fourth Proportional to 8,011,543.63, 11,982,982.36 and 7,430,021.70
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Solution
The fourth proportional to 8,011,543.63, 11,982,982.36 and 7,430,021.70 is: 11,113,191.55
Step by Step Solution
- Step 1: Write the proportion equation
8,011,543.63 : 11,982,982.36 = 7,430,021.70 : x - Step 2: Convert to fraction form
8,011,543.63/11,982,982.36 = 7,430,021.70/x - Step 3: Cross multiply
8,011,543.63x = 11,982,982.36 × 7,430,021.70 - Step 4: Simplify right side
8,011,543.63x = 89,033,818,965,517.20 - Step 5: Solve for x
x = 89,033,818,965,517.20/8,011,543.63 - Step 6: Final answer
x = 11,113,191.55
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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.