Finding the Fourth Proportional to 30,355,245.40, 45,517,121.70 and 11,176,130.20
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Solution
The fourth proportional to 30,355,245.40, 45,517,121.70 and 11,176,130.20 is: 16,758,397.82
Step by Step Solution
- Step 1: Write the proportion equation
30,355,245.40 : 45,517,121.70 = 11,176,130.20 : x - Step 2: Convert to fraction form
30,355,245.40/45,517,121.70 = 11,176,130.20/x - Step 3: Cross multiply
30,355,245.40x = 45,517,121.70 × 11,176,130.20 - Step 4: Simplify right side
30,355,245.40x = 508,705,278,448,445.31 - Step 5: Solve for x
x = 508,705,278,448,445.31/30,355,245.40 - Step 6: Final answer
x = 16,758,397.82
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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.