Finding the Fourth Proportional to 161,721,407.20, 242,582,110.80 and 157,469,879.20
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Solution
The fourth proportional to 161,721,407.20, 242,582,110.80 and 157,469,879.20 is: 236,204,818.80
Step by Step Solution
- Step 1: Write the proportion equation
161,721,407.20 : 242,582,110.80 = 157,469,879.20 : x - Step 2: Convert to fraction form
161,721,407.20/242,582,110.80 = 157,469,879.20/x - Step 3: Cross multiply
161,721,407.20x = 242,582,110.80 × 157,469,879.20 - Step 4: Simplify right side
161,721,407.20x = 38,199,375,683,757,016 - Step 5: Solve for x
x = 38,199,375,683,757,016/161,721,407.20 - Step 6: Final answer
x = 236,204,818.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.