Finding the Fourth Proportional to 388,220,020.91, 582,619,248.57 and 284,856,325.30
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Solution
The fourth proportional to 388,220,020.91, 582,619,248.57 and 284,856,325.30 is: 427,496,700.99
Step by Step Solution
- Step 1: Write the proportion equation
388,220,020.91 : 582,619,248.57 = 284,856,325.30 : x - Step 2: Convert to fraction form
388,220,020.91/582,619,248.57 = 284,856,325.30/x - Step 3: Cross multiply
388,220,020.91x = 582,619,248.57 × 284,856,325.30 - Step 4: Simplify right side
388,220,020.91x = 165,962,778,193,784,416 - Step 5: Solve for x
x = 165,962,778,193,784,416/388,220,020.91 - Step 6: Final answer
x = 427,496,700.99
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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.