Finding the Fourth Proportional to 405,261,813.26, 559,261,780.58 and 219,622,828.95
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Solution
The fourth proportional to 405,261,813.26, 559,261,780.58 and 219,622,828.95 is: 303,079,763.14
Step by Step Solution
- Step 1: Write the proportion equation
405,261,813.26 : 559,261,780.58 = 219,622,828.95 : x - Step 2: Convert to fraction form
405,261,813.26/559,261,780.58 = 219,622,828.95/x - Step 3: Cross multiply
405,261,813.26x = 559,261,780.58 × 219,622,828.95 - Step 4: Simplify right side
405,261,813.26x = 122,826,654,373,906,336 - Step 5: Solve for x
x = 122,826,654,373,906,336/405,261,813.26 - Step 6: Final answer
x = 303,079,763.14
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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.