Finding the Fourth Proportional to 479,393,277.52, 661,374,491.52 and 278,415,939.62
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Solution
The fourth proportional to 479,393,277.52, 661,374,491.52 and 278,415,939.62 is: 384,104,678.00
Step by Step Solution
- Step 1: Write the proportion equation
479,393,277.52 : 661,374,491.52 = 278,415,939.62 : x - Step 2: Convert to fraction form
479,393,277.52/661,374,491.52 = 278,415,939.62/x - Step 3: Cross multiply
479,393,277.52x = 661,374,491.52 × 278,415,939.62 - Step 4: Simplify right side
479,393,277.52x = 184,137,200,495,369,728 - Step 5: Solve for x
x = 184,137,200,495,369,728/479,393,277.52 - Step 6: Final answer
x = 384,104,678.00
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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.