Finding the Fourth Proportional to 14,575,694.70, 21,863,542.05 and 5,120,078.70
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Solution
The fourth proportional to 14,575,694.70, 21,863,542.05 and 5,120,078.70 is: 7,680,118.05
Step by Step Solution
- Step 1: Write the proportion equation
14,575,694.70 : 21,863,542.05 = 5,120,078.70 : x - Step 2: Convert to fraction form
14,575,694.70/21,863,542.05 = 5,120,078.70/x - Step 3: Cross multiply
14,575,694.70x = 21,863,542.05 × 5,120,078.70 - Step 4: Simplify right side
14,575,694.70x = 111,943,055,956,759.34 - Step 5: Solve for x
x = 111,943,055,956,759.34/14,575,694.70 - Step 6: Final answer
x = 7,680,118.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.