Finding the Fourth Proportional to 101,043,680.88, 139,313,879.41 and 84,322,554.10
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Solution
The fourth proportional to 101,043,680.88, 139,313,879.41 and 84,322,554.10 is: 116,259,641.68
Step by Step Solution
- Step 1: Write the proportion equation
101,043,680.88 : 139,313,879.41 = 84,322,554.10 : x - Step 2: Convert to fraction form
101,043,680.88/139,313,879.41 = 84,322,554.10/x - Step 3: Cross multiply
101,043,680.88x = 139,313,879.41 × 84,322,554.10 - Step 4: Simplify right side
101,043,680.88x = 11,747,302,133,430,600 - Step 5: Solve for x
x = 11,747,302,133,430,600/101,043,680.88 - Step 6: Final answer
x = 116,259,641.68
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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.