Finding the Fourth Proportional to 149,561,541.82, 206,429,365.38 and 87,701,809.42
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Solution
The fourth proportional to 149,561,541.82, 206,429,365.38 and 87,701,809.42 is: 121,048,691.00
Step by Step Solution
- Step 1: Write the proportion equation
149,561,541.82 : 206,429,365.38 = 87,701,809.42 : x - Step 2: Convert to fraction form
149,561,541.82/206,429,365.38 = 87,701,809.42/x - Step 3: Cross multiply
149,561,541.82x = 206,429,365.38 × 87,701,809.42 - Step 4: Simplify right side
149,561,541.82x = 18,104,228,861,248,304 - Step 5: Solve for x
x = 18,104,228,861,248,304/149,561,541.82 - Step 6: Final answer
x = 121,048,691.00
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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.