Finding the Fourth Proportional to 145,536,700.80, 218,305,051.20 and 131,187,793.80
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Solution
The fourth proportional to 145,536,700.80, 218,305,051.20 and 131,187,793.80 is: 196,781,690.70
Step by Step Solution
- Step 1: Write the proportion equation
145,536,700.80 : 218,305,051.20 = 131,187,793.80 : x - Step 2: Convert to fraction form
145,536,700.80/218,305,051.20 = 131,187,793.80/x - Step 3: Cross multiply
145,536,700.80x = 218,305,051.20 × 131,187,793.80 - Step 4: Simplify right side
145,536,700.80x = 28,638,958,042,324,040 - Step 5: Solve for x
x = 28,638,958,042,324,040/145,536,700.80 - Step 6: Final answer
x = 196,781,690.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.