Finding the Fourth Proportional to 475,748,700.40, 656,653,888.56 and 325,102,366.72
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Solution
The fourth proportional to 475,748,700.40, 656,653,888.56 and 325,102,366.72 is: 448,723,733.99
Step by Step Solution
- Step 1: Write the proportion equation
475,748,700.40 : 656,653,888.56 = 325,102,366.72 : x - Step 2: Convert to fraction form
475,748,700.40/656,653,888.56 = 325,102,366.72/x - Step 3: Cross multiply
475,748,700.40x = 656,653,888.56 × 325,102,366.72 - Step 4: Simplify right side
475,748,700.40x = 213,479,733,286,747,136 - Step 5: Solve for x
x = 213,479,733,286,747,136/475,748,700.40 - Step 6: Final answer
x = 448,723,733.99
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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.