Finding the Fourth Proportional to 10,267,502.40, 15,382,591.20 and 8,363,937.60
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Solution
The fourth proportional to 10,267,502.40, 15,382,591.20 and 8,363,937.60 is: 12,530,703.95
Step by Step Solution
- Step 1: Write the proportion equation
10,267,502.40 : 15,382,591.20 = 8,363,937.60 : x - Step 2: Convert to fraction form
10,267,502.40/15,382,591.20 = 8,363,937.60/x - Step 3: Cross multiply
10,267,502.40x = 15,382,591.20 × 8,363,937.60 - Step 4: Simplify right side
10,267,502.40x = 128,659,032,923,109.11 - Step 5: Solve for x
x = 128,659,032,923,109.11/10,267,502.40 - Step 6: Final answer
x = 12,530,703.95
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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.