Finding the Fourth Proportional to 287,863,046.25, 431,795,828.26 and 91,127,420.08
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Solution
The fourth proportional to 287,863,046.25, 431,795,828.26 and 91,127,420.08 is: 136,691,528.64
Step by Step Solution
- Step 1: Write the proportion equation
287,863,046.25 : 431,795,828.26 = 91,127,420.08 : x - Step 2: Convert to fraction form
287,863,046.25/431,795,828.26 = 91,127,420.08/x - Step 3: Cross multiply
287,863,046.25x = 431,795,828.26 × 91,127,420.08 - Step 4: Simplify right side
287,863,046.25x = 39,348,439,831,294,208 - Step 5: Solve for x
x = 39,348,439,831,294,208/287,863,046.25 - Step 6: Final answer
x = 136,691,528.64
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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.