Finding the Fourth Proportional to 38,687,858.46, 53,389,244.70 and 21,283,830
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Solution
The fourth proportional to 38,687,858.46, 53,389,244.70 and 21,283,830 is: 29,371,685.41
Step by Step Solution
- Step 1: Write the proportion equation
38,687,858.46 : 53,389,244.70 = 21,283,830 : x - Step 2: Convert to fraction form
38,687,858.46/53,389,244.70 = 21,283,830/x - Step 3: Cross multiply
38,687,858.46x = 53,389,244.70 × 21,283,830 - Step 4: Simplify right side
38,687,858.46x = 1,136,327,608,023,201 - Step 5: Solve for x
x = 1,136,327,608,023,201/38,687,858.46 - Step 6: Final answer
x = 29,371,685.41
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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.