Finding the Fourth Proportional to 768,091,216.87, 1,152,139,814.41 and 185,824,528.17
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Solution
The fourth proportional to 768,091,216.87, 1,152,139,814.41 and 185,824,528.17 is: 278,737,515.41
Step by Step Solution
- Step 1: Write the proportion equation
768,091,216.87 : 1,152,139,814.41 = 185,824,528.17 : x - Step 2: Convert to fraction form
768,091,216.87/1,152,139,814.41 = 185,824,528.17/x - Step 3: Cross multiply
768,091,216.87x = 1,152,139,814.41 × 185,824,528.17 - Step 4: Simplify right side
768,091,216.87x = 214,095,837,398,609,632 - Step 5: Solve for x
x = 214,095,837,398,609,632/768,091,216.87 - Step 6: Final answer
x = 278,737,515.41
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1.5x scale
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.