Finding the Fourth Proportional to 157,293,309.20, 217,157,772.17 and 139,841,367.53
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Solution
The fourth proportional to 157,293,309.20, 217,157,772.17 and 139,841,367.53 is: 193,063,773.56
Step by Step Solution
- Step 1: Write the proportion equation
157,293,309.20 : 217,157,772.17 = 139,841,367.53 : x - Step 2: Convert to fraction form
157,293,309.20/217,157,772.17 = 139,841,367.53/x - Step 3: Cross multiply
157,293,309.20x = 217,157,772.17 × 139,841,367.53 - Step 4: Simplify right side
157,293,309.20x = 30,367,639,829,284,792 - Step 5: Solve for x
x = 30,367,639,829,284,792/157,293,309.20 - Step 6: Final answer
x = 193,063,773.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.