Finding the Fourth Proportional to 263,426,078.94, 394,985,953.80 and 99,676,485.12
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Solution
The fourth proportional to 263,426,078.94, 394,985,953.80 and 99,676,485.12 is: 149,456,772.48
Step by Step Solution
- Step 1: Write the proportion equation
263,426,078.94 : 394,985,953.80 = 99,676,485.12 : x - Step 2: Convert to fraction form
263,426,078.94/394,985,953.80 = 99,676,485.12/x - Step 3: Cross multiply
263,426,078.94x = 394,985,953.80 × 99,676,485.12 - Step 4: Simplify right side
263,426,078.94x = 39,370,811,546,554,712 - Step 5: Solve for x
x = 39,370,811,546,554,712/263,426,078.94 - Step 6: Final answer
x = 149,456,772.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.