Finding the Fourth Proportional to 21,304,392.53, 29,400,639.05 and 13,044,297.65
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Solution
The fourth proportional to 21,304,392.53, 29,400,639.05 and 13,044,297.65 is: 18,001,484.26
Step by Step Solution
- Step 1: Write the proportion equation
21,304,392.53 : 29,400,639.05 = 13,044,297.65 : x - Step 2: Convert to fraction form
21,304,392.53/29,400,639.05 = 13,044,297.65/x - Step 3: Cross multiply
21,304,392.53x = 29,400,639.05 × 13,044,297.65 - Step 4: Simplify right side
21,304,392.53x = 383,510,686,754,020.75 - Step 5: Solve for x
x = 383,510,686,754,020.75/21,304,392.53 - Step 6: Final answer
x = 18,001,484.26
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1.5x scale
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.