Finding the Fourth Proportional to 38,687,841.46, 53,389,220.88 and 21,283,813.18
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Solution
The fourth proportional to 38,687,841.46, 53,389,220.88 and 21,283,813.18 is: 29,371,662.00
Step by Step Solution
- Step 1: Write the proportion equation
38,687,841.46 : 53,389,220.88 = 21,283,813.18 : x - Step 2: Convert to fraction form
38,687,841.46/53,389,220.88 = 21,283,813.18/x - Step 3: Cross multiply
38,687,841.46x = 53,389,220.88 × 21,283,813.18 - Step 4: Simplify right side
38,687,841.46x = 1,136,326,203,035,675.25 - Step 5: Solve for x
x = 1,136,326,203,035,675.25/38,687,841.46 - Step 6: Final answer
x = 29,371,662.00
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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.