Finding the Fourth Proportional to 21,304,390.19, 29,400,635.83 and 13,044,295.31
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Solution
The fourth proportional to 21,304,390.19, 29,400,635.83 and 13,044,295.31 is: 18,001,481.04
Step by Step Solution
- Step 1: Write the proportion equation
21,304,390.19 : 29,400,635.83 = 13,044,295.31 : x - Step 2: Convert to fraction form
21,304,390.19/29,400,635.83 = 13,044,295.31/x - Step 3: Cross multiply
21,304,390.19x = 29,400,635.83 × 13,044,295.31 - Step 4: Simplify right side
21,304,390.19x = 383,510,575,888,673.06 - Step 5: Solve for x
x = 383,510,575,888,673.06/21,304,390.19 - Step 6: Final answer
x = 18,001,481.04
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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.