Finding the Fourth Proportional to 19,729,322.70, 29,593,984.05 and 18,217,668.30
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Solution
The fourth proportional to 19,729,322.70, 29,593,984.05 and 18,217,668.30 is: 27,326,502.45
Step by Step Solution
- Step 1: Write the proportion equation
19,729,322.70 : 29,593,984.05 = 18,217,668.30 : x - Step 2: Convert to fraction form
19,729,322.70/29,593,984.05 = 18,217,668.30/x - Step 3: Cross multiply
19,729,322.70x = 29,593,984.05 × 18,217,668.30 - Step 4: Simplify right side
19,729,322.70x = 539,133,385,098,390.62 - Step 5: Solve for x
x = 539,133,385,098,390.62/19,729,322.70 - Step 6: Final answer
x = 27,326,502.45
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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.