Finding the Fourth Proportional to 257,090,587.38, 385,585,666.07 and 82,166,699.08
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Solution
The fourth proportional to 257,090,587.38, 385,585,666.07 and 82,166,699.08 is: 123,233,999.80
Step by Step Solution
- Step 1: Write the proportion equation
257,090,587.38 : 385,585,666.07 = 82,166,699.08 : x - Step 2: Convert to fraction form
257,090,587.38/385,585,666.07 = 82,166,699.08/x - Step 3: Cross multiply
257,090,587.38x = 385,585,666.07 × 82,166,699.08 - Step 4: Simplify right side
257,090,587.38x = 31,682,301,393,535,056 - Step 5: Solve for x
x = 31,682,301,393,535,056/257,090,587.38 - Step 6: Final answer
x = 123,233,999.80
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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.