Finding the Fourth Proportional to 6,433,915.60, 9,658,246.20 and 3,776,021.20
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Solution
The fourth proportional to 6,433,915.60, 9,658,246.20 and 3,776,021.20 is: 5,668,358.85
Step by Step Solution
- Step 1: Write the proportion equation
6,433,915.60 : 9,658,246.20 = 3,776,021.20 : x - Step 2: Convert to fraction form
6,433,915.60/9,658,246.20 = 3,776,021.20/x - Step 3: Cross multiply
6,433,915.60x = 9,658,246.20 × 3,776,021.20 - Step 4: Simplify right side
6,433,915.60x = 36,469,742,406,019.44 - Step 5: Solve for x
x = 36,469,742,406,019.44/6,433,915.60 - Step 6: Final answer
x = 5,668,358.85
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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.