Finding the Fourth Proportional to 157,292,645.44, 216,974,960.64 and 98,453,160
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Solution
The fourth proportional to 157,292,645.44, 216,974,960.64 and 98,453,160 is: 135,809,722.42
Step by Step Solution
- Step 1: Write the proportion equation
157,292,645.44 : 216,974,960.64 = 98,453,160 : x - Step 2: Convert to fraction form
157,292,645.44/216,974,960.64 = 98,453,160/x - Step 3: Cross multiply
157,292,645.44x = 216,974,960.64 × 98,453,160 - Step 4: Simplify right side
157,292,645.44x = 21,361,870,515,883,620 - Step 5: Solve for x
x = 21,361,870,515,883,620/157,292,645.44 - Step 6: Final answer
x = 135,809,722.42
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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.