Finding the Fourth Proportional to 497,534,558.94, 686,512,658.07 and 288,642,816.54
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Solution
The fourth proportional to 497,534,558.94, 686,512,658.07 and 288,642,816.54 is: 398,277,755.09
Step by Step Solution
- Step 1: Write the proportion equation
497,534,558.94 : 686,512,658.07 = 288,642,816.54 : x - Step 2: Convert to fraction form
497,534,558.94/686,512,658.07 = 288,642,816.54/x - Step 3: Cross multiply
497,534,558.94x = 686,512,658.07 × 288,642,816.54 - Step 4: Simplify right side
497,534,558.94x = 198,156,947,215,686,784 - Step 5: Solve for x
x = 198,156,947,215,686,784/497,534,558.94 - Step 6: Final answer
x = 398,277,755.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.