Finding the Fourth Proportional to 497,534,559.44, 686,512,658.76 and 288,642,817.04
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Solution
The fourth proportional to 497,534,559.44, 686,512,658.76 and 288,642,817.04 is: 398,277,755.78
Step by Step Solution
- Step 1: Write the proportion equation
497,534,559.44 : 686,512,658.76 = 288,642,817.04 : x - Step 2: Convert to fraction form
497,534,559.44/686,512,658.76 = 288,642,817.04/x - Step 3: Cross multiply
497,534,559.44x = 686,512,658.76 × 288,642,817.04 - Step 4: Simplify right side
497,534,559.44x = 198,156,947,758,106,656 - Step 5: Solve for x
x = 198,156,947,758,106,656/497,534,559.44 - Step 6: Final answer
x = 398,277,755.78
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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.