Finding the Fourth Proportional to 727,664,907.80, 1,091,497,361.70 and 555,478,023.80
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Solution
The fourth proportional to 727,664,907.80, 1,091,497,361.70 and 555,478,023.80 is: 833,217,035.70
Step by Step Solution
- Step 1: Write the proportion equation
727,664,907.80 : 1,091,497,361.70 = 555,478,023.80 : x - Step 2: Convert to fraction form
727,664,907.80/1,091,497,361.70 = 555,478,023.80/x - Step 3: Cross multiply
727,664,907.80x = 1,091,497,361.70 × 555,478,023.80 - Step 4: Simplify right side
727,664,907.80x = 606,302,797,460,029,824 - Step 5: Solve for x
x = 606,302,797,460,029,824/727,664,907.80 - Step 6: Final answer
x = 833,217,035.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.