Finding the Fourth Proportional to 81,766,783.84, 122,635,613.02 and 32,578,514.74
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Solution
The fourth proportional to 81,766,783.84, 122,635,613.02 and 32,578,514.74 is: 48,861,969.85
Step by Step Solution
- Step 1: Write the proportion equation
81,766,783.84 : 122,635,613.02 = 32,578,514.74 : x - Step 2: Convert to fraction form
81,766,783.84/122,635,613.02 = 32,578,514.74/x - Step 3: Cross multiply
81,766,783.84x = 122,635,613.02 × 32,578,514.74 - Step 4: Simplify right side
81,766,783.84x = 3,995,286,126,421,005.50 - Step 5: Solve for x
x = 3,995,286,126,421,005.50/81,766,783.84 - Step 6: Final answer
x = 48,861,969.85
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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.