Finding the Fourth Proportional to 251,069,362.62, 346,479,863.73 and 138,043,629.99
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Solution
The fourth proportional to 251,069,362.62, 346,479,863.73 and 138,043,629.99 is: 190,502,487.47
Step by Step Solution
- Step 1: Write the proportion equation
251,069,362.62 : 346,479,863.73 = 138,043,629.99 : x - Step 2: Convert to fraction form
251,069,362.62/346,479,863.73 = 138,043,629.99/x - Step 3: Cross multiply
251,069,362.62x = 346,479,863.73 × 138,043,629.99 - Step 4: Simplify right side
251,069,362.62x = 47,829,338,107,729,744 - Step 5: Solve for x
x = 47,829,338,107,729,744/251,069,362.62 - Step 6: Final answer
x = 190,502,487.47
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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.