Finding the Fourth Proportional to 388,560,446.04, 582,776,821.62 and 139,514,152.44
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Solution
The fourth proportional to 388,560,446.04, 582,776,821.62 and 139,514,152.44 is: 209,248,303.99
Step by Step Solution
- Step 1: Write the proportion equation
388,560,446.04 : 582,776,821.62 = 139,514,152.44 : x - Step 2: Convert to fraction form
388,560,446.04/582,776,821.62 = 139,514,152.44/x - Step 3: Cross multiply
388,560,446.04x = 582,776,821.62 × 139,514,152.44 - Step 4: Simplify right side
388,560,446.04x = 81,305,614,329,991,360 - Step 5: Solve for x
x = 81,305,614,329,991,360/388,560,446.04 - Step 6: Final answer
x = 209,248,303.99
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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.