Finding the Fourth Proportional to 205,648,520.49, 283,720,486.23 and 135,122,092.56
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Solution
The fourth proportional to 205,648,520.49, 283,720,486.23 and 135,122,092.56 is: 186,419,555.61
Step by Step Solution
- Step 1: Write the proportion equation
205,648,520.49 : 283,720,486.23 = 135,122,092.56 : x - Step 2: Convert to fraction form
205,648,520.49/283,720,486.23 = 135,122,092.56/x - Step 3: Cross multiply
205,648,520.49x = 283,720,486.23 × 135,122,092.56 - Step 4: Simplify right side
205,648,520.49x = 38,336,905,801,538,272 - Step 5: Solve for x
x = 38,336,905,801,538,272/205,648,520.49 - Step 6: Final answer
x = 186,419,555.61
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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.