Finding the Fourth Proportional to 831,503,351.92, 1,147,460,706.84 and 460,217,434.48
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Solution
The fourth proportional to 831,503,351.92, 1,147,460,706.84 and 460,217,434.48 is: 635,092,355.85
Step by Step Solution
- Step 1: Write the proportion equation
831,503,351.92 : 1,147,460,706.84 = 460,217,434.48 : x - Step 2: Convert to fraction form
831,503,351.92/1,147,460,706.84 = 460,217,434.48/x - Step 3: Cross multiply
831,503,351.92x = 1,147,460,706.84 × 460,217,434.48 - Step 4: Simplify right side
831,503,351.92x = 528,081,422,668,512,192 - Step 5: Solve for x
x = 528,081,422,668,512,192/831,503,351.92 - Step 6: Final answer
x = 635,092,355.85
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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.