Finding the Fourth Proportional to 373,438,757.36, 515,390,675.18 and 212,541,860.59
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Solution
The fourth proportional to 373,438,757.36, 515,390,675.18 and 212,541,860.59 is: 293,333,487.41
Step by Step Solution
- Step 1: Write the proportion equation
373,438,757.36 : 515,390,675.18 = 212,541,860.59 : x - Step 2: Convert to fraction form
373,438,757.36/515,390,675.18 = 212,541,860.59/x - Step 3: Cross multiply
373,438,757.36x = 515,390,675.18 × 212,541,860.59 - Step 4: Simplify right side
373,438,757.36x = 109,542,093,031,142,352 - Step 5: Solve for x
x = 109,542,093,031,142,352/373,438,757.36 - Step 6: Final answer
x = 293,333,487.41
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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.