Finding the Fourth Proportional to 405,261,822.98, 559,261,794.12 and 219,622,838.70
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Solution
The fourth proportional to 405,261,822.98, 559,261,794.12 and 219,622,838.70 is: 303,079,776.67
Step by Step Solution
- Step 1: Write the proportion equation
405,261,822.98 : 559,261,794.12 = 219,622,838.70 : x - Step 2: Convert to fraction form
405,261,822.98/559,261,794.12 = 219,622,838.70/x - Step 3: Cross multiply
405,261,822.98x = 559,261,794.12 × 219,622,838.70 - Step 4: Simplify right side
405,261,822.98x = 122,826,662,801,089,360 - Step 5: Solve for x
x = 122,826,662,801,089,360/405,261,822.98 - Step 6: Final answer
x = 303,079,776.67
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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.