Finding the Fourth Proportional to 278,683,107.48, 417,790,827.09 and 123,211,814.40
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Solution
The fourth proportional to 278,683,107.48, 417,790,827.09 and 123,211,814.40 is: 184,714,338.49
Step by Step Solution
- Step 1: Write the proportion equation
278,683,107.48 : 417,790,827.09 = 123,211,814.40 : x - Step 2: Convert to fraction form
278,683,107.48/417,790,827.09 = 123,211,814.40/x - Step 3: Cross multiply
278,683,107.48x = 417,790,827.09 × 123,211,814.40 - Step 4: Simplify right side
278,683,107.48x = 51,476,765,845,435,568 - Step 5: Solve for x
x = 51,476,765,845,435,568/278,683,107.48 - Step 6: Final answer
x = 184,714,338.49
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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.