Finding the Fourth Proportional to 485,019,418.62, 727,589,632.44 and 189,876,414.26
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Solution
The fourth proportional to 485,019,418.62, 727,589,632.44 and 189,876,414.26 is: 284,838,307.82
Step by Step Solution
- Step 1: Write the proportion equation
485,019,418.62 : 727,589,632.44 = 189,876,414.26 : x - Step 2: Convert to fraction form
485,019,418.62/727,589,632.44 = 189,876,414.26/x - Step 3: Cross multiply
485,019,418.62x = 727,589,632.44 × 189,876,414.26 - Step 4: Simplify right side
485,019,418.62x = 138,152,110,461,926,272 - Step 5: Solve for x
x = 138,152,110,461,926,272/485,019,418.62 - Step 6: Final answer
x = 284,838,307.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.