Finding the Fourth Proportional to 464,354,286.28, 640,789,702.68 and 252,661,988.23
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Solution
The fourth proportional to 464,354,286.28, 640,789,702.68 and 252,661,988.23 is: 348,663,090.02
Step by Step Solution
- Step 1: Write the proportion equation
464,354,286.28 : 640,789,702.68 = 252,661,988.23 : x - Step 2: Convert to fraction form
464,354,286.28/640,789,702.68 = 252,661,988.23/x - Step 3: Cross multiply
464,354,286.28x = 640,789,702.68 × 252,661,988.23 - Step 4: Simplify right side
464,354,286.28x = 161,903,200,316,439,328 - Step 5: Solve for x
x = 161,903,200,316,439,328/464,354,286.28 - Step 6: Final answer
x = 348,663,090.02
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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.