Finding the Fourth Proportional to 154,097,959.14, 212,649,540.57 and 84,481,812.54
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Solution
The fourth proportional to 154,097,959.14, 212,649,540.57 and 84,481,812.54 is: 116,581,807.59
Step by Step Solution
- Step 1: Write the proportion equation
154,097,959.14 : 212,649,540.57 = 84,481,812.54 : x - Step 2: Convert to fraction form
154,097,959.14/212,649,540.57 = 84,481,812.54/x - Step 3: Cross multiply
154,097,959.14x = 212,649,540.57 × 84,481,812.54 - Step 4: Simplify right side
154,097,959.14x = 17,965,018,623,151,866 - Step 5: Solve for x
x = 17,965,018,623,151,866/154,097,959.14 - Step 6: Final answer
x = 116,581,807.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.