Finding the Fourth Proportional to 10,252,472.40, 15,377,542.20 and 2,680,203.60
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Solution
The fourth proportional to 10,252,472.40, 15,377,542.20 and 2,680,203.60 is: 4,020,000.48
Step by Step Solution
- Step 1: Write the proportion equation
10,252,472.40 : 15,377,542.20 = 2,680,203.60 : x - Step 2: Convert to fraction form
10,252,472.40/15,377,542.20 = 2,680,203.60/x - Step 3: Cross multiply
10,252,472.40x = 15,377,542.20 × 2,680,203.60 - Step 4: Simplify right side
10,252,472.40x = 41,214,943,963,591.92 - Step 5: Solve for x
x = 41,214,943,963,591.92/10,252,472.40 - Step 6: Final answer
x = 4,020,000.48
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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.