Finding the Fourth Proportional to 202,464,716.99, 279,399,918.38 and 109,643,100.71
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Solution
The fourth proportional to 202,464,716.99, 279,399,918.38 and 109,643,100.71 is: 151,306,725.65
Step by Step Solution
- Step 1: Write the proportion equation
202,464,716.99 : 279,399,918.38 = 109,643,100.71 : x - Step 2: Convert to fraction form
202,464,716.99/279,399,918.38 = 109,643,100.71/x - Step 3: Cross multiply
202,464,716.99x = 279,399,918.38 × 109,643,100.71 - Step 4: Simplify right side
202,464,716.99x = 30,634,273,387,358,904 - Step 5: Solve for x
x = 30,634,273,387,358,904/202,464,716.99 - Step 6: Final answer
x = 151,306,725.65
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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.