Finding the Fourth Proportional to 7,121,251,094.88, 9,826,027,104.24 and 4,109,405,031.84
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Solution
The fourth proportional to 7,121,251,094.88, 9,826,027,104.24 and 4,109,405,031.84 is: 5,670,229,105.42
Step by Step Solution
- Step 1: Write the proportion equation
7,121,251,094.88 : 9,826,027,104.24 = 4,109,405,031.84 : x - Step 2: Convert to fraction form
7,121,251,094.88/9,826,027,104.24 = 4,109,405,031.84/x - Step 3: Cross multiply
7,121,251,094.88x = 9,826,027,104.24 × 4,109,405,031.84 - Step 4: Simplify right side
7,121,251,094.88x = 40,379,125,225,160,081,408 - Step 5: Solve for x
x = 40,379,125,225,160,081,408/7,121,251,094.88 - Step 6: Final answer
x = 5,670,229,105.42
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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.