Finding the Fourth Proportional to 81,752,772.42, 122,108,007.11 and 73,959,719.22
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Solution
The fourth proportional to 81,752,772.42, 122,108,007.11 and 73,959,719.22 is: 110,468,105.88
Step by Step Solution
- Step 1: Write the proportion equation
81,752,772.42 : 122,108,007.11 = 73,959,719.22 : x - Step 2: Convert to fraction form
81,752,772.42/122,108,007.11 = 73,959,719.22/x - Step 3: Cross multiply
81,752,772.42x = 122,108,007.11 × 73,959,719.22 - Step 4: Simplify right side
81,752,772.42x = 9,031,073,919,999,566 - Step 5: Solve for x
x = 9,031,073,919,999,566/81,752,772.42 - Step 6: Final answer
x = 110,468,105.88
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.