Finding the Fourth Proportional to 1,266,581,438.62, 1,898,532,629.30 and 468,385,670.78
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Solution
The fourth proportional to 1,266,581,438.62, 1,898,532,629.30 and 468,385,670.78 is: 702,083,144.41
Step by Step Solution
- Step 1: Write the proportion equation
1,266,581,438.62 : 1,898,532,629.30 = 468,385,670.78 : x - Step 2: Convert to fraction form
1,266,581,438.62/1,898,532,629.30 = 468,385,670.78/x - Step 3: Cross multiply
1,266,581,438.62x = 1,898,532,629.30 × 468,385,670.78 - Step 4: Simplify right side
1,266,581,438.62x = 889,245,479,072,397,568 - Step 5: Solve for x
x = 889,245,479,072,397,568/1,266,581,438.62 - Step 6: Final answer
x = 702,083,144.41
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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.