Finding the Fourth Proportional to 210,331,576.90, 315,496,941.30 and 197,532,265.09
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Solution
The fourth proportional to 210,331,576.90, 315,496,941.30 and 197,532,265.09 is: 296,297,999.39
Step by Step Solution
- Step 1: Write the proportion equation
210,331,576.90 : 315,496,941.30 = 197,532,265.09 : x - Step 2: Convert to fraction form
210,331,576.90/315,496,941.30 = 197,532,265.09/x - Step 3: Cross multiply
210,331,576.90x = 315,496,941.30 × 197,532,265.09 - Step 4: Simplify right side
210,331,576.90x = 62,320,825,443,955,776 - Step 5: Solve for x
x = 62,320,825,443,955,776/210,331,576.90 - Step 6: Final answer
x = 296,297,999.39
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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.