Finding the Fourth Proportional to 353,412,005.76, 487,702,745.28 and 206,759,134.08
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Solution
The fourth proportional to 353,412,005.76, 487,702,745.28 and 206,759,134.08 is: 285,324,198.55
Step by Step Solution
- Step 1: Write the proportion equation
353,412,005.76 : 487,702,745.28 = 206,759,134.08 : x - Step 2: Convert to fraction form
353,412,005.76/487,702,745.28 = 206,759,134.08/x - Step 3: Cross multiply
353,412,005.76x = 487,702,745.28 × 206,759,134.08 - Step 4: Simplify right side
353,412,005.76x = 100,836,997,302,531,600 - Step 5: Solve for x
x = 100,836,997,302,531,600/353,412,005.76 - Step 6: Final answer
x = 285,324,198.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.