Finding the Fourth Proportional to 23,106,917.30, 31,888,542.20 and 12,793,640.09
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Solution
The fourth proportional to 23,106,917.30, 31,888,542.20 and 12,793,640.09 is: 17,655,774.96
Step by Step Solution
- Step 1: Write the proportion equation
23,106,917.30 : 31,888,542.20 = 12,793,640.09 : x - Step 2: Convert to fraction form
23,106,917.30/31,888,542.20 = 12,793,640.09/x - Step 3: Cross multiply
23,106,917.30x = 31,888,542.20 × 12,793,640.09 - Step 4: Simplify right side
23,106,917.30x = 407,970,531,678,165.94 - Step 5: Solve for x
x = 407,970,531,678,165.94/23,106,917.30 - Step 6: Final answer
x = 17,655,774.96
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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.