Finding the Fourth Proportional to 201,865,439.78, 278,626,138.38 and 131,476,453.00
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Solution
The fourth proportional to 201,865,439.78, 278,626,138.38 and 131,476,453.00 is: 181,471,263.37
Step by Step Solution
- Step 1: Write the proportion equation
201,865,439.78 : 278,626,138.38 = 131,476,453.00 : x - Step 2: Convert to fraction form
201,865,439.78/278,626,138.38 = 131,476,453.00/x - Step 3: Cross multiply
201,865,439.78x = 278,626,138.38 × 131,476,453.00 - Step 4: Simplify right side
201,865,439.78x = 36,632,776,387,755,048 - Step 5: Solve for x
x = 36,632,776,387,755,048/201,865,439.78 - Step 6: Final answer
x = 181,471,263.37
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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.