Finding the Fourth Proportional to 392,528,328,805.75, 541,689,094,794.99 and 212,087,236,054
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Solution
The fourth proportional to 392,528,328,805.75, 541,689,094,794.99 and 212,087,236,054 is: 292,680,386,318.09
Step by Step Solution
- Step 1: Write the proportion equation
392,528,328,805.75 : 541,689,094,794.99 = 212,087,236,054 : x - Step 2: Convert to fraction form
392,528,328,805.75/541,689,094,794.99 = 212,087,236,054/x - Step 3: Cross multiply
392,528,328,805.75x = 541,689,094,794.99 × 212,087,236,054 - Step 4: Simplify right side
392,528,328,805.75x = 114,885,342,915,662,631,141,376 - Step 5: Solve for x
x = 114,885,342,915,662,631,141,376/392,528,328,805.75 - Step 6: Final answer
x = 292,680,386,318.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.