Finding the Fourth Proportional to 15,126,930.24, 20,875,296.96 and 8,251,442.88
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Solution
The fourth proportional to 15,126,930.24, 20,875,296.96 and 8,251,442.88 is: 11,387,063.85
Step by Step Solution
- Step 1: Write the proportion equation
15,126,930.24 : 20,875,296.96 = 8,251,442.88 : x - Step 2: Convert to fraction form
15,126,930.24/20,875,296.96 = 8,251,442.88/x - Step 3: Cross multiply
15,126,930.24x = 20,875,296.96 × 8,251,442.88 - Step 4: Simplify right side
15,126,930.24x = 172,251,320,468,477.66 - Step 5: Solve for x
x = 172,251,320,468,477.66/15,126,930.24 - Step 6: Final answer
x = 11,387,063.85
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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.