Finding the Fourth Proportional to 19,642,034.80, 27,096,619.98 and 15,261,140.08
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Solution
The fourth proportional to 19,642,034.80, 27,096,619.98 and 15,261,140.08 is: 21,053,079.14
Step by Step Solution
- Step 1: Write the proportion equation
19,642,034.80 : 27,096,619.98 = 15,261,140.08 : x - Step 2: Convert to fraction form
19,642,034.80/27,096,619.98 = 15,261,140.08/x - Step 3: Cross multiply
19,642,034.80x = 27,096,619.98 × 15,261,140.08 - Step 4: Simplify right side
19,642,034.80x = 413,525,313,209,306.81 - Step 5: Solve for x
x = 413,525,313,209,306.81/19,642,034.80 - Step 6: Final answer
x = 21,053,079.14
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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.