Finding the Fourth Proportional to 261,378,035.70, 392,067,053.55 and 69,901,811.70
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Solution
The fourth proportional to 261,378,035.70, 392,067,053.55 and 69,901,811.70 is: 104,852,717.55
Step by Step Solution
- Step 1: Write the proportion equation
261,378,035.70 : 392,067,053.55 = 69,901,811.70 : x - Step 2: Convert to fraction form
261,378,035.70/392,067,053.55 = 69,901,811.70/x - Step 3: Cross multiply
261,378,035.70x = 392,067,053.55 × 69,901,811.70 - Step 4: Simplify right side
261,378,035.70x = 27,406,197,351,025,920 - Step 5: Solve for x
x = 27,406,197,351,025,920/261,378,035.70 - Step 6: Final answer
x = 104,852,717.55
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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.