Finding the Fourth Proportional to 74,745,431.70, 104,388,512.70 and 74,745,431.70
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Solution
The fourth proportional to 74,745,431.70, 104,388,512.70 and 74,745,431.70 is: 104,388,512.70
Step by Step Solution
- Step 1: Write the proportion equation
74,745,431.70 : 104,388,512.70 = 74,745,431.70 : x - Step 2: Convert to fraction form
74,745,431.70/104,388,512.70 = 74,745,431.70/x - Step 3: Cross multiply
74,745,431.70x = 104,388,512.70 × 74,745,431.70 - Step 4: Simplify right side
74,745,431.70x = 7,802,564,446,282,433 - Step 5: Solve for x
x = 7,802,564,446,282,433/74,745,431.70 - Step 6: Final answer
x = 104,388,512.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.