Finding the Fourth Proportional to 21,563,131.76, 29,756,895.88 and 11,773,545.68
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Solution
The fourth proportional to 21,563,131.76, 29,756,895.88 and 11,773,545.68 is: 16,247,369.67
Step by Step Solution
- Step 1: Write the proportion equation
21,563,131.76 : 29,756,895.88 = 11,773,545.68 : x - Step 2: Convert to fraction form
21,563,131.76/29,756,895.88 = 11,773,545.68/x - Step 3: Cross multiply
21,563,131.76x = 29,756,895.88 × 11,773,545.68 - Step 4: Simplify right side
21,563,131.76x = 350,344,172,938,183.75 - Step 5: Solve for x
x = 350,344,172,938,183.75/21,563,131.76 - Step 6: Final answer
x = 16,247,369.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.