Finding the Fourth Proportional to 20,710,330.19, 28,573,922.34 and 12,006,765.98
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Solution
The fourth proportional to 20,710,330.19, 28,573,922.34 and 12,006,765.98 is: 16,565,665.32
Step by Step Solution
- Step 1: Write the proportion equation
20,710,330.19 : 28,573,922.34 = 12,006,765.98 : x - Step 2: Convert to fraction form
20,710,330.19/28,573,922.34 = 12,006,765.98/x - Step 3: Cross multiply
20,710,330.19x = 28,573,922.34 × 12,006,765.98 - Step 4: Simplify right side
20,710,330.19x = 343,080,398,524,204.38 - Step 5: Solve for x
x = 343,080,398,524,204.38/20,710,330.19 - Step 6: Final answer
x = 16,565,665.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.