Finding the Fourth Proportional to 106,217,945.88, 146,439,419.72 and 79,643,238.68
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Solution
The fourth proportional to 106,217,945.88, 146,439,419.72 and 79,643,238.68 is: 109,801,687.09
Step by Step Solution
- Step 1: Write the proportion equation
106,217,945.88 : 146,439,419.72 = 79,643,238.68 : x - Step 2: Convert to fraction form
106,217,945.88/146,439,419.72 = 79,643,238.68/x - Step 3: Cross multiply
106,217,945.88x = 146,439,419.72 × 79,643,238.68 - Step 4: Simplify right side
106,217,945.88x = 11,662,909,656,920,660 - Step 5: Solve for x
x = 11,662,909,656,920,660/106,217,945.88 - Step 6: Final answer
x = 109,801,687.09
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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.