Finding the Fourth Proportional to 694,537,550.58, 958,426,621.68 and 412,292,055.90
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Solution
The fourth proportional to 694,537,550.58, 958,426,621.68 and 412,292,055.90 is: 568,942,142.80
Step by Step Solution
- Step 1: Write the proportion equation
694,537,550.58 : 958,426,621.68 = 412,292,055.90 : x - Step 2: Convert to fraction form
694,537,550.58/958,426,621.68 = 412,292,055.90/x - Step 3: Cross multiply
694,537,550.58x = 958,426,621.68 × 412,292,055.90 - Step 4: Simplify right side
694,537,550.58x = 395,151,682,281,738,688 - Step 5: Solve for x
x = 395,151,682,281,738,688/694,537,550.58 - Step 6: Final answer
x = 568,942,142.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.