Finding the Fourth Proportional to 878,586,424.58, 1,212,445,939.59 and 482,116,048.99
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Solution
The fourth proportional to 878,586,424.58, 1,212,445,939.59 and 482,116,048.99 is: 665,318,322.31
Step by Step Solution
- Step 1: Write the proportion equation
878,586,424.58 : 1,212,445,939.59 = 482,116,048.99 : x - Step 2: Convert to fraction form
878,586,424.58/1,212,445,939.59 = 482,116,048.99/x - Step 3: Cross multiply
878,586,424.58x = 1,212,445,939.59 × 482,116,048.99 - Step 4: Simplify right side
878,586,424.58x = 584,539,646,006,067,840 - Step 5: Solve for x
x = 584,539,646,006,067,840/878,586,424.58 - Step 6: Final answer
x = 665,318,322.31
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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.