Finding the Fourth Proportional to 5,153,821.10, 7,731,728.12 and 1,958,698.18
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Solution
The fourth proportional to 5,153,821.10, 7,731,728.12 and 1,958,698.18 is: 2,938,425.97
Step by Step Solution
- Step 1: Write the proportion equation
5,153,821.10 : 7,731,728.12 = 1,958,698.18 : x - Step 2: Convert to fraction form
5,153,821.10/7,731,728.12 = 1,958,698.18/x - Step 3: Cross multiply
5,153,821.10x = 7,731,728.12 × 1,958,698.18 - Step 4: Simplify right side
5,153,821.10x = 15,144,121,758,240.18 - Step 5: Solve for x
x = 15,144,121,758,240.18/5,153,821.10 - Step 6: Final answer
x = 2,938,425.97
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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.