Finding the Fourth Proportional to 257,090,606.19, 385,585,694.51 and 82,166,717.97
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Solution
The fourth proportional to 257,090,606.19, 385,585,694.51 and 82,166,717.97 is: 123,234,028.20
Step by Step Solution
- Step 1: Write the proportion equation
257,090,606.19 : 385,585,694.51 = 82,166,717.97 : x - Step 2: Convert to fraction form
257,090,606.19/385,585,694.51 = 82,166,717.97/x - Step 3: Cross multiply
257,090,606.19x = 385,585,694.51 × 82,166,717.97 - Step 4: Simplify right side
257,090,606.19x = 31,682,311,013,658,912 - Step 5: Solve for x
x = 31,682,311,013,658,912/257,090,606.19 - Step 6: Final answer
x = 123,234,028.20
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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.