Finding the Fourth Proportional to 19,420,414.80, 29,120,124.60 and 8,062,011.60
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Solution
The fourth proportional to 19,420,414.80, 29,120,124.60 and 8,062,011.60 is: 12,088,659.52
Step by Step Solution
- Step 1: Write the proportion equation
19,420,414.80 : 29,120,124.60 = 8,062,011.60 : x - Step 2: Convert to fraction form
19,420,414.80/29,120,124.60 = 8,062,011.60/x - Step 3: Cross multiply
19,420,414.80x = 29,120,124.60 × 8,062,011.60 - Step 4: Simplify right side
19,420,414.80x = 234,766,782,318,645.38 - Step 5: Solve for x
x = 234,766,782,318,645.38/19,420,414.80 - Step 6: Final answer
x = 12,088,659.52
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1.5x scale
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.