Finding the Fourth Proportional to 471,849,691.92, 651,431,893.68 and 419,494,117.50
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Solution
The fourth proportional to 471,849,691.92, 651,431,893.68 and 419,494,117.50 is: 579,150,208.28
Step by Step Solution
- Step 1: Write the proportion equation
471,849,691.92 : 651,431,893.68 = 419,494,117.50 : x - Step 2: Convert to fraction form
471,849,691.92/651,431,893.68 = 419,494,117.50/x - Step 3: Cross multiply
471,849,691.92x = 651,431,893.68 × 419,494,117.50 - Step 4: Simplify right side
471,849,691.92x = 273,271,847,350,645,408 - Step 5: Solve for x
x = 273,271,847,350,645,408/471,849,691.92 - Step 6: Final answer
x = 579,150,208.28
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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.