Finding the Fourth Proportional to 638,406,246.99, 957,649,827.26 and 269,872,515.03
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Solution
The fourth proportional to 638,406,246.99, 957,649,827.26 and 269,872,515.03 is: 404,825,874.78
Step by Step Solution
- Step 1: Write the proportion equation
638,406,246.99 : 957,649,827.26 = 269,872,515.03 : x - Step 2: Convert to fraction form
638,406,246.99/957,649,827.26 = 269,872,515.03/x - Step 3: Cross multiply
638,406,246.99x = 957,649,827.26 × 269,872,515.03 - Step 4: Simplify right side
638,406,246.99x = 258,443,367,400,701,216 - Step 5: Solve for x
x = 258,443,367,400,701,216/638,406,246.99 - Step 6: Final answer
x = 404,825,874.78
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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.