Finding the Fourth Proportional to 86,305,573.49, 129,509,435.90 and 31,756,465.98
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Solution
The fourth proportional to 86,305,573.49, 129,509,435.90 and 31,756,465.98 is: 47,653,492.46
Step by Step Solution
- Step 1: Write the proportion equation
86,305,573.49 : 129,509,435.90 = 31,756,465.98 : x - Step 2: Convert to fraction form
86,305,573.49/129,509,435.90 = 31,756,465.98/x - Step 3: Cross multiply
86,305,573.49x = 129,509,435.90 × 31,756,465.98 - Step 4: Simplify right side
86,305,573.49x = 4,112,761,995,247,341 - Step 5: Solve for x
x = 4,112,761,995,247,341/86,305,573.49 - Step 6: Final answer
x = 47,653,492.46
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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.