Finding the Fourth Proportional to 464,354,286.78, 640,789,703.37 and 252,661,988.73
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Solution
The fourth proportional to 464,354,286.78, 640,789,703.37 and 252,661,988.73 is: 348,663,090.71
Step by Step Solution
- Step 1: Write the proportion equation
464,354,286.78 : 640,789,703.37 = 252,661,988.73 : x - Step 2: Convert to fraction form
464,354,286.78/640,789,703.37 = 252,661,988.73/x - Step 3: Cross multiply
464,354,286.78x = 640,789,703.37 × 252,661,988.73 - Step 4: Simplify right side
464,354,286.78x = 161,903,200,811,170,976 - Step 5: Solve for x
x = 161,903,200,811,170,976/464,354,286.78 - Step 6: Final answer
x = 348,663,090.71
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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.