Finding the Fourth Proportional to 5,251,806,681.57, 7,247,471,553.06 and 2,840,491,865.25
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Solution
The fourth proportional to 5,251,806,681.57, 7,247,471,553.06 and 2,840,491,865.25 is: 3,919,867,054.96
Step by Step Solution
- Step 1: Write the proportion equation
5,251,806,681.57 : 7,247,471,553.06 = 2,840,491,865.25 : x - Step 2: Convert to fraction form
5,251,806,681.57/7,247,471,553.06 = 2,840,491,865.25/x - Step 3: Cross multiply
5,251,806,681.57x = 7,247,471,553.06 × 2,840,491,865.25 - Step 4: Simplify right side
5,251,806,681.57x = 20,586,383,990,097,715,200 - Step 5: Solve for x
x = 20,586,383,990,097,715,200/5,251,806,681.57 - Step 6: Final answer
x = 3,919,867,054.96
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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.