Finding the Fourth Proportional to 38,612,888.80, 57,918,447.60 and 19,438,496.80
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Solution
The fourth proportional to 38,612,888.80, 57,918,447.60 and 19,438,496.80 is: 29,157,299.37
Step by Step Solution
- Step 1: Write the proportion equation
38,612,888.80 : 57,918,447.60 = 19,438,496.80 : x - Step 2: Convert to fraction form
38,612,888.80/57,918,447.60 = 19,438,496.80/x - Step 3: Cross multiply
38,612,888.80x = 57,918,447.60 × 19,438,496.80 - Step 4: Simplify right side
38,612,888.80x = 1,125,847,558,333,567.75 - Step 5: Solve for x
x = 1,125,847,558,333,567.75/38,612,888.80 - Step 6: Final answer
x = 29,157,299.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.