Finding the Fourth Proportional to 135,033,355,889.42, 202,568,659,933.17 and 78,399,890,274.38
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Solution
The fourth proportional to 135,033,355,889.42, 202,568,659,933.17 and 78,399,890,274.38 is: 117,610,649,658.99
Step by Step Solution
- Step 1: Write the proportion equation
135,033,355,889.42 : 202,568,659,933.17 = 78,399,890,274.38 : x - Step 2: Convert to fraction form
135,033,355,889.42/202,568,659,933.17 = 78,399,890,274.38/x - Step 3: Cross multiply
135,033,355,889.42x = 202,568,659,933.17 × 78,399,890,274.38 - Step 4: Simplify right side
135,033,355,889.42x = 15,881,360,711,788,726,845,440 - Step 5: Solve for x
x = 15,881,360,711,788,726,845,440/135,033,355,889.42 - Step 6: Final answer
x = 117,610,649,658.99
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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.