Finding the Fourth Proportional to 421,578,939.24, 632,584,586.94 and 203,415,337.80
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Solution
The fourth proportional to 421,578,939.24, 632,584,586.94 and 203,415,337.80 is: 305,227,314.42
Step by Step Solution
- Step 1: Write the proportion equation
421,578,939.24 : 632,584,586.94 = 203,415,337.80 : x - Step 2: Convert to fraction form
421,578,939.24/632,584,586.94 = 203,415,337.80/x - Step 3: Cross multiply
421,578,939.24x = 632,584,586.94 × 203,415,337.80 - Step 4: Simplify right side
421,578,939.24x = 128,677,407,439,473,584 - Step 5: Solve for x
x = 128,677,407,439,473,584/421,578,939.24 - Step 6: Final answer
x = 305,227,314.42
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.