Finding the Fourth Proportional to 276,889,702.12, 382,065,343.86 and 159,392,328.28
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Solution
The fourth proportional to 276,889,702.12, 382,065,343.86 and 159,392,328.28 is: 219,936,979.41
Step by Step Solution
- Step 1: Write the proportion equation
276,889,702.12 : 382,065,343.86 = 159,392,328.28 : x - Step 2: Convert to fraction form
276,889,702.12/382,065,343.86 = 159,392,328.28/x - Step 3: Cross multiply
276,889,702.12x = 382,065,343.86 × 159,392,328.28 - Step 4: Simplify right side
276,889,702.12x = 60,898,284,712,944,208 - Step 5: Solve for x
x = 60,898,284,712,944,208/276,889,702.12 - Step 6: Final answer
x = 219,936,979.41
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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.