Finding the Fourth Proportional to 5,564,331.70, 7,678,640.38 and 3,116,926.98
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Solution
The fourth proportional to 5,564,331.70, 7,678,640.38 and 3,116,926.98 is: 4,301,282.28
Step by Step Solution
- Step 1: Write the proportion equation
5,564,331.70 : 7,678,640.38 = 3,116,926.98 : x - Step 2: Convert to fraction form
5,564,331.70/7,678,640.38 = 3,116,926.98/x - Step 3: Cross multiply
5,564,331.70x = 7,678,640.38 × 3,116,926.98 - Step 4: Simplify right side
5,564,331.70x = 23,933,761,368,191.37 - Step 5: Solve for x
x = 23,933,761,368,191.37/5,564,331.70 - Step 6: Final answer
x = 4,301,282.28
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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.