Finding the Fourth Proportional to 7,663,965.60, 11,491,801.20 and 3,176,695.20
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Solution
The fourth proportional to 7,663,965.60, 11,491,801.20 and 3,176,695.20 is: 4,763,323.80
Step by Step Solution
- Step 1: Write the proportion equation
7,663,965.60 : 11,491,801.20 = 3,176,695.20 : x - Step 2: Convert to fraction form
7,663,965.60/11,491,801.20 = 3,176,695.20/x - Step 3: Cross multiply
7,663,965.60x = 11,491,801.20 × 3,176,695.20 - Step 4: Simplify right side
7,663,965.60x = 36,505,949,711,394.24 - Step 5: Solve for x
x = 36,505,949,711,394.24/7,663,965.60 - Step 6: Final answer
x = 4,763,323.80
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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.