Finding the Fourth Proportional to 1,647,372,515.84, 2,273,514,273.44 and 933,035,135.68
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Solution
The fourth proportional to 1,647,372,515.84, 2,273,514,273.44 and 933,035,135.68 is: 1,287,667,894.29
Step by Step Solution
- Step 1: Write the proportion equation
1,647,372,515.84 : 2,273,514,273.44 = 933,035,135.68 : x - Step 2: Convert to fraction form
1,647,372,515.84/2,273,514,273.44 = 933,035,135.68/x - Step 3: Cross multiply
1,647,372,515.84x = 2,273,514,273.44 × 933,035,135.68 - Step 4: Simplify right side
1,647,372,515.84x = 2,121,268,698,589,507,072 - Step 5: Solve for x
x = 2,121,268,698,589,507,072/1,647,372,515.84 - Step 6: Final answer
x = 1,287,667,894.29
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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.