Finding the Fourth Proportional to 820,476,580.92, 1,132,214,683.44 and 449,127,480.12
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Solution
The fourth proportional to 820,476,580.92, 1,132,214,683.44 and 449,127,480.12 is: 619,772,385.41
Step by Step Solution
- Step 1: Write the proportion equation
820,476,580.92 : 1,132,214,683.44 = 449,127,480.12 : x - Step 2: Convert to fraction form
820,476,580.92/1,132,214,683.44 = 449,127,480.12/x - Step 3: Cross multiply
820,476,580.92x = 1,132,214,683.44 × 449,127,480.12 - Step 4: Simplify right side
820,476,580.92x = 508,508,727,728,270,720 - Step 5: Solve for x
x = 508,508,727,728,270,720/820,476,580.92 - Step 6: Final answer
x = 619,772,385.41
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1.5x scale
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.