Finding the Fourth Proportional to 438,822,284.85, 605,636,447.67 and 271,612,181.79
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Solution
The fourth proportional to 438,822,284.85, 605,636,447.67 and 271,612,181.79 is: 374,862,997.17
Step by Step Solution
- Step 1: Write the proportion equation
438,822,284.85 : 605,636,447.67 = 271,612,181.79 : x - Step 2: Convert to fraction form
438,822,284.85/605,636,447.67 = 271,612,181.79/x - Step 3: Cross multiply
438,822,284.85x = 605,636,447.67 × 271,612,181.79 - Step 4: Simplify right side
438,822,284.85x = 164,498,236,923,193,856 - Step 5: Solve for x
x = 164,498,236,923,193,856/438,822,284.85 - Step 6: Final answer
x = 374,862,997.17
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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.