Finding the Fourth Proportional to 373,438,761.72, 515,390,681.16 and 212,541,864.96
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Solution
The fourth proportional to 373,438,761.72, 515,390,681.16 and 212,541,864.96 is: 293,333,493.43
Step by Step Solution
- Step 1: Write the proportion equation
373,438,761.72 : 515,390,681.16 = 212,541,864.96 : x - Step 2: Convert to fraction form
373,438,761.72/515,390,681.16 = 212,541,864.96/x - Step 3: Cross multiply
373,438,761.72x = 515,390,681.16 × 212,541,864.96 - Step 4: Simplify right side
373,438,761.72x = 109,542,096,556,751,152 - Step 5: Solve for x
x = 109,542,096,556,751,152/373,438,761.72 - Step 6: Final answer
x = 293,333,493.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.