Finding the Fourth Proportional to 4,877,045.82, 7,285,905.81 and 3,157,178.09
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Solution
The fourth proportional to 4,877,045.82, 7,285,905.81 and 3,157,178.09 is: 4,716,564.70
Step by Step Solution
- Step 1: Write the proportion equation
4,877,045.82 : 7,285,905.81 = 3,157,178.09 : x - Step 2: Convert to fraction form
4,877,045.82/7,285,905.81 = 3,157,178.09/x - Step 3: Cross multiply
4,877,045.82x = 7,285,905.81 × 3,157,178.09 - Step 4: Simplify right side
4,877,045.82x = 23,002,902,152,706.17 - Step 5: Solve for x
x = 23,002,902,152,706.17/4,877,045.82 - Step 6: Final answer
x = 4,716,564.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.