Finding the Fourth Proportional to 813,067,839.08, 1,219,628,072.68 and 387,064,069.28
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Solution
The fourth proportional to 813,067,839.08, 1,219,628,072.68 and 387,064,069.28 is: 580,608,630.83
Step by Step Solution
- Step 1: Write the proportion equation
813,067,839.08 : 1,219,628,072.68 = 387,064,069.28 : x - Step 2: Convert to fraction form
813,067,839.08/1,219,628,072.68 = 387,064,069.28/x - Step 3: Cross multiply
813,067,839.08x = 1,219,628,072.68 × 387,064,069.28 - Step 4: Simplify right side
813,067,839.08x = 472,074,204,819,644,416 - Step 5: Solve for x
x = 472,074,204,819,644,416/813,067,839.08 - Step 6: Final answer
x = 580,608,630.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.