Finding the Fourth Proportional to 731,699,992.73, 1,009,746,959.16 and 397,172,297.99
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Solution
The fourth proportional to 731,699,992.73, 1,009,746,959.16 and 397,172,297.99 is: 548,098,297.31
Step by Step Solution
- Step 1: Write the proportion equation
731,699,992.73 : 1,009,746,959.16 = 397,172,297.99 : x - Step 2: Convert to fraction form
731,699,992.73/1,009,746,959.16 = 397,172,297.99/x - Step 3: Cross multiply
731,699,992.73x = 1,009,746,959.16 × 397,172,297.99 - Step 4: Simplify right side
731,699,992.73x = 401,043,520,152,943,168 - Step 5: Solve for x
x = 401,043,520,152,943,168/731,699,992.73 - Step 6: Final answer
x = 548,098,297.31
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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.