Finding the Fourth Proportional to 19,960,052.70, 29,940,079.05 and 18,700,340.70
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Solution
The fourth proportional to 19,960,052.70, 29,940,079.05 and 18,700,340.70 is: 28,050,511.05
Step by Step Solution
- Step 1: Write the proportion equation
19,960,052.70 : 29,940,079.05 = 18,700,340.70 : x - Step 2: Convert to fraction form
19,960,052.70/29,940,079.05 = 18,700,340.70/x - Step 3: Cross multiply
19,960,052.70x = 29,940,079.05 × 18,700,340.70 - Step 4: Simplify right side
19,960,052.70x = 559,889,678,819,932.31 - Step 5: Solve for x
x = 559,889,678,819,932.31/19,960,052.70 - Step 6: Final answer
x = 28,050,511.05
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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.