Finding the Fourth Proportional to 485,958,735.48, 670,622,620.50 and 274,310,117.58
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Solution
The fourth proportional to 485,958,735.48, 670,622,620.50 and 274,310,117.58 is: 378,547,717.02
Step by Step Solution
- Step 1: Write the proportion equation
485,958,735.48 : 670,622,620.50 = 274,310,117.58 : x - Step 2: Convert to fraction form
485,958,735.48/670,622,620.50 = 274,310,117.58/x - Step 3: Cross multiply
485,958,735.48x = 670,622,620.50 × 274,310,117.58 - Step 4: Simplify right side
485,958,735.48x = 183,958,569,881,162,720 - Step 5: Solve for x
x = 183,958,569,881,162,720/485,958,735.48 - Step 6: Final answer
x = 378,547,717.02
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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.