Finding the Fourth Proportional to 7,782,423.62, 11,680,719.35 and 4,142,209.62
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Solution
The fourth proportional to 7,782,423.62, 11,680,719.35 and 4,142,209.62 is: 6,217,084.85
Step by Step Solution
- Step 1: Write the proportion equation
7,782,423.62 : 11,680,719.35 = 4,142,209.62 : x - Step 2: Convert to fraction form
7,782,423.62/11,680,719.35 = 4,142,209.62/x - Step 3: Cross multiply
7,782,423.62x = 11,680,719.35 × 4,142,209.62 - Step 4: Simplify right side
7,782,423.62x = 48,383,987,980,975.51 - Step 5: Solve for x
x = 48,383,987,980,975.51/7,782,423.62 - Step 6: Final answer
x = 6,217,084.85
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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.