Finding the Fourth Proportional to 745,367,416.12, 1,028,560,238.10 and 410,821,528.66
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Solution
The fourth proportional to 745,367,416.12, 1,028,560,238.10 and 410,821,528.66 is: 566,907,917.08
Step by Step Solution
- Step 1: Write the proportion equation
745,367,416.12 : 1,028,560,238.10 = 410,821,528.66 : x - Step 2: Convert to fraction form
745,367,416.12/1,028,560,238.10 = 410,821,528.66/x - Step 3: Cross multiply
745,367,416.12x = 1,028,560,238.10 × 410,821,528.66 - Step 4: Simplify right side
745,367,416.12x = 422,554,689,335,135,616 - Step 5: Solve for x
x = 422,554,689,335,135,616/745,367,416.12 - Step 6: Final answer
x = 566,907,917.08
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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.