Finding the Fourth Proportional to 319,240,977.36, 440,515,112.76 and 180,003,441.84
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Solution
The fourth proportional to 319,240,977.36, 440,515,112.76 and 180,003,441.84 is: 248,383,641.52
Step by Step Solution
- Step 1: Write the proportion equation
319,240,977.36 : 440,515,112.76 = 180,003,441.84 : x - Step 2: Convert to fraction form
319,240,977.36/440,515,112.76 = 180,003,441.84/x - Step 3: Cross multiply
319,240,977.36x = 440,515,112.76 × 180,003,441.84 - Step 4: Simplify right side
319,240,977.36x = 79,294,236,479,335,696 - Step 5: Solve for x
x = 79,294,236,479,335,696/319,240,977.36 - Step 6: Final answer
x = 248,383,641.52
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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.