Finding the Fourth Proportional to 4,785,474.33, 7,161,349.46 and 2,989,203.75
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Solution
The fourth proportional to 4,785,474.33, 7,161,349.46 and 2,989,203.75 is: 4,473,272.90
Step by Step Solution
- Step 1: Write the proportion equation
4,785,474.33 : 7,161,349.46 = 2,989,203.75 : x - Step 2: Convert to fraction form
4,785,474.33/7,161,349.46 = 2,989,203.75/x - Step 3: Cross multiply
4,785,474.33x = 7,161,349.46 × 2,989,203.75 - Step 4: Simplify right side
4,785,474.33x = 21,406,732,645,946.46 - Step 5: Solve for x
x = 21,406,732,645,946.46/4,785,474.33 - Step 6: Final answer
x = 4,473,272.90
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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.