Finding the Fourth Proportional to 6,642,758.70, 9,964,138.05 and 2,155,034.70
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Solution
The fourth proportional to 6,642,758.70, 9,964,138.05 and 2,155,034.70 is: 3,232,552.05
Step by Step Solution
- Step 1: Write the proportion equation
6,642,758.70 : 9,964,138.05 = 2,155,034.70 : x - Step 2: Convert to fraction form
6,642,758.70/9,964,138.05 = 2,155,034.70/x - Step 3: Cross multiply
6,642,758.70x = 9,964,138.05 × 2,155,034.70 - Step 4: Simplify right side
6,642,758.70x = 21,473,063,253,340.34 - Step 5: Solve for x
x = 21,473,063,253,340.34/6,642,758.70 - Step 6: Final answer
x = 3,232,552.05
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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.