Finding the Fourth Proportional to 129,042,136.80, 193,536,305.10 and 47,199,566.70
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Solution
The fourth proportional to 129,042,136.80, 193,536,305.10 and 47,199,566.70 is: 70,789,510.84
Step by Step Solution
- Step 1: Write the proportion equation
129,042,136.80 : 193,536,305.10 = 47,199,566.70 : x - Step 2: Convert to fraction form
129,042,136.80/193,536,305.10 = 47,199,566.70/x - Step 3: Cross multiply
129,042,136.80x = 193,536,305.10 × 47,199,566.70 - Step 4: Simplify right side
129,042,136.80x = 9,134,829,741,439,000 - Step 5: Solve for x
x = 9,134,829,741,439,000/129,042,136.80 - Step 6: Final answer
x = 70,789,510.84
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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.