Finding the Fourth Proportional to 53,309,795.63, 79,964,694.05 and 12,920,279.63
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Solution
The fourth proportional to 53,309,795.63, 79,964,694.05 and 12,920,279.63 is: 19,380,419.58
Step by Step Solution
- Step 1: Write the proportion equation
53,309,795.63 : 79,964,694.05 = 12,920,279.63 : x - Step 2: Convert to fraction form
53,309,795.63/79,964,694.05 = 12,920,279.63/x - Step 3: Cross multiply
53,309,795.63x = 79,964,694.05 × 12,920,279.63 - Step 4: Simplify right side
53,309,795.63x = 1,033,166,207,188,972.38 - Step 5: Solve for x
x = 1,033,166,207,188,972.38/53,309,795.63 - Step 6: Final answer
x = 19,380,419.58
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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.