Finding the Fourth Proportional to 80,970,124.09, 111,622,553.94 and 57,724,894.75
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Solution
The fourth proportional to 80,970,124.09, 111,622,553.94 and 57,724,894.75 is: 79,577,501.58
Step by Step Solution
- Step 1: Write the proportion equation
80,970,124.09 : 111,622,553.94 = 57,724,894.75 : x - Step 2: Convert to fraction form
80,970,124.09/111,622,553.94 = 57,724,894.75/x - Step 3: Cross multiply
80,970,124.09x = 111,622,553.94 × 57,724,894.75 - Step 4: Simplify right side
80,970,124.09x = 6,443,400,177,912,698 - Step 5: Solve for x
x = 6,443,400,177,912,698/80,970,124.09 - Step 6: Final answer
x = 79,577,501.58
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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.