Finding the Fourth Proportional to 144,661,107.88, 199,632,406.63 and 79,475,210.92
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Solution
The fourth proportional to 144,661,107.88, 199,632,406.63 and 79,475,210.92 is: 109,675,833.79
Step by Step Solution
- Step 1: Write the proportion equation
144,661,107.88 : 199,632,406.63 = 79,475,210.92 : x - Step 2: Convert to fraction form
144,661,107.88/199,632,406.63 = 79,475,210.92/x - Step 3: Cross multiply
144,661,107.88x = 199,632,406.63 × 79,475,210.92 - Step 4: Simplify right side
144,661,107.88x = 15,865,827,623,386,456 - Step 5: Solve for x
x = 15,865,827,623,386,456/144,661,107.88 - Step 6: Final answer
x = 109,675,833.79
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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.