Finding the Fourth Proportional to 19,642,033.80, 27,096,618.60 and 15,261,139.08
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Solution
The fourth proportional to 19,642,033.80, 27,096,618.60 and 15,261,139.08 is: 21,053,077.76
Step by Step Solution
- Step 1: Write the proportion equation
19,642,033.80 : 27,096,618.60 = 15,261,139.08 : x - Step 2: Convert to fraction form
19,642,033.80/27,096,618.60 = 15,261,139.08/x - Step 3: Cross multiply
19,642,033.80x = 27,096,618.60 × 15,261,139.08 - Step 4: Simplify right side
19,642,033.80x = 413,525,265,052,314.94 - Step 5: Solve for x
x = 413,525,265,052,314.94/19,642,033.80 - Step 6: Final answer
x = 21,053,077.76
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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.