Finding the Fourth Proportional to 878,482,914.48, 1,212,328,732.77 and 482,005,798.92
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Solution
The fourth proportional to 878,482,914.48, 1,212,328,732.77 and 482,005,798.92 is: 665,180,243.99
Step by Step Solution
- Step 1: Write the proportion equation
878,482,914.48 : 1,212,328,732.77 = 482,005,798.92 : x - Step 2: Convert to fraction form
878,482,914.48/1,212,328,732.77 = 482,005,798.92/x - Step 3: Cross multiply
878,482,914.48x = 1,212,328,732.77 × 482,005,798.92 - Step 4: Simplify right side
878,482,914.48x = 584,349,479,392,475,008 - Step 5: Solve for x
x = 584,349,479,392,475,008/878,482,914.48 - Step 6: Final answer
x = 665,180,243.99
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Double scale
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1.5x scale
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.