Finding the Fourth Proportional to 161,721,405.70, 242,582,108.55 and 157,469,877.70
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Solution
The fourth proportional to 161,721,405.70, 242,582,108.55 and 157,469,877.70 is: 236,204,816.55
Step by Step Solution
- Step 1: Write the proportion equation
161,721,405.70 : 242,582,108.55 = 157,469,877.70 : x - Step 2: Convert to fraction form
161,721,405.70/242,582,108.55 = 157,469,877.70/x - Step 3: Cross multiply
161,721,405.70x = 242,582,108.55 × 157,469,877.70 - Step 4: Simplify right side
161,721,405.70x = 38,199,374,965,576,624 - Step 5: Solve for x
x = 38,199,374,965,576,624/161,721,405.70 - Step 6: Final answer
x = 236,204,816.55
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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.