Finding the Fourth Proportional to 19,310,348.20, 28,965,522.30 and 19,011,749.80
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Solution
The fourth proportional to 19,310,348.20, 28,965,522.30 and 19,011,749.80 is: 28,517,624.70
Step by Step Solution
- Step 1: Write the proportion equation
19,310,348.20 : 28,965,522.30 = 19,011,749.80 : x - Step 2: Convert to fraction form
19,310,348.20/28,965,522.30 = 19,011,749.80/x - Step 3: Cross multiply
19,310,348.20x = 28,965,522.30 × 19,011,749.80 - Step 4: Simplify right side
19,310,348.20x = 550,685,262,793,920.56 - Step 5: Solve for x
x = 550,685,262,793,920.56/19,310,348.20 - Step 6: Final answer
x = 28,517,624.70
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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.