Finding the Fourth Proportional to 7,884,076.80, 11,803,996.80 and 7,662,892.80
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Solution
The fourth proportional to 7,884,076.80, 11,803,996.80 and 7,662,892.80 is: 11,472,841.32
Step by Step Solution
- Step 1: Write the proportion equation
7,884,076.80 : 11,803,996.80 = 7,662,892.80 : x - Step 2: Convert to fraction form
7,884,076.80/11,803,996.80 = 7,662,892.80/x - Step 3: Cross multiply
7,884,076.80x = 11,803,996.80 × 7,662,892.80 - Step 4: Simplify right side
7,884,076.80x = 90,452,762,089,943.05 - Step 5: Solve for x
x = 90,452,762,089,943.05/7,884,076.80 - Step 6: Final answer
x = 11,472,841.32
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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.