Finding the Fourth Proportional to 86,305,571.87, 129,509,433.47 and 31,756,464.35
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Solution
The fourth proportional to 86,305,571.87, 129,509,433.47 and 31,756,464.35 is: 47,653,490.00
Step by Step Solution
- Step 1: Write the proportion equation
86,305,571.87 : 129,509,433.47 = 31,756,464.35 : x - Step 2: Convert to fraction form
86,305,571.87/129,509,433.47 = 31,756,464.35/x - Step 3: Cross multiply
86,305,571.87x = 129,509,433.47 × 31,756,464.35 - Step 4: Simplify right side
86,305,571.87x = 4,112,761,706,172,422.50 - Step 5: Solve for x
x = 4,112,761,706,172,422.50/86,305,571.87 - Step 6: Final answer
x = 47,653,490.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.