Finding the Fourth Proportional to 91,151,738.36, 125,789,389.12 and 49,335,796
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Solution
The fourth proportional to 91,151,738.36, 125,789,389.12 and 49,335,796 is: 68,083,393.17
Step by Step Solution
- Step 1: Write the proportion equation
91,151,738.36 : 125,789,389.12 = 49,335,796 : x - Step 2: Convert to fraction form
91,151,738.36/125,789,389.12 = 49,335,796/x - Step 3: Cross multiply
91,151,738.36x = 125,789,389.12 × 49,335,796 - Step 4: Simplify right side
91,151,738.36x = 6,205,919,640,588,940 - Step 5: Solve for x
x = 6,205,919,640,588,940/91,151,738.36 - Step 6: Final answer
x = 68,083,393.17
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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.