Finding the Fourth Proportional to 4,134,991.68, 5,705,452.28 and 2,415,780.05
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Solution
The fourth proportional to 4,134,991.68, 5,705,452.28 and 2,415,780.05 is: 3,333,287.91
Step by Step Solution
- Step 1: Write the proportion equation
4,134,991.68 : 5,705,452.28 = 2,415,780.05 : x - Step 2: Convert to fraction form
4,134,991.68/5,705,452.28 = 2,415,780.05/x - Step 3: Cross multiply
4,134,991.68x = 5,705,452.28 × 2,415,780.05 - Step 4: Simplify right side
4,134,991.68x = 13,783,117,771,763.20 - Step 5: Solve for x
x = 13,783,117,771,763.20/4,134,991.68 - Step 6: Final answer
x = 3,333,287.91
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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.