Finding the Fourth Proportional to 39,039,930.31, 53,862,792.79 and 22,517,839.68
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Solution
The fourth proportional to 39,039,930.31, 53,862,792.79 and 22,517,839.68 is: 31,067,517.88
Step by Step Solution
- Step 1: Write the proportion equation
39,039,930.31 : 53,862,792.79 = 22,517,839.68 : x - Step 2: Convert to fraction form
39,039,930.31/53,862,792.79 = 22,517,839.68/x - Step 3: Cross multiply
39,039,930.31x = 53,862,792.79 × 22,517,839.68 - Step 4: Simplify right side
39,039,930.31x = 1,212,873,732,705,985.25 - Step 5: Solve for x
x = 1,212,873,732,705,985.25/39,039,930.31 - Step 6: Final answer
x = 31,067,517.88
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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.