Finding the Fourth Proportional to 472,394,574.30, 708,591,861.45 and 165,717,687.90
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Solution
The fourth proportional to 472,394,574.30, 708,591,861.45 and 165,717,687.90 is: 248,576,531.85
Step by Step Solution
- Step 1: Write the proportion equation
472,394,574.30 : 708,591,861.45 = 165,717,687.90 : x - Step 2: Convert to fraction form
472,394,574.30/708,591,861.45 = 165,717,687.90/x - Step 3: Cross multiply
472,394,574.30x = 708,591,861.45 × 165,717,687.90 - Step 4: Simplify right side
472,394,574.30x = 117,426,204,944,251,152 - Step 5: Solve for x
x = 117,426,204,944,251,152/472,394,574.30 - Step 6: Final answer
x = 248,576,531.85
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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.