Finding the Fourth Proportional to 21,365,938.18, 29,486,240.49 and 12,073,271.50
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Solution
The fourth proportional to 21,365,938.18, 29,486,240.49 and 12,073,271.50 is: 16,661,818.64
Step by Step Solution
- Step 1: Write the proportion equation
21,365,938.18 : 29,486,240.49 = 12,073,271.50 : x - Step 2: Convert to fraction form
21,365,938.18/29,486,240.49 = 12,073,271.50/x - Step 3: Cross multiply
21,365,938.18x = 29,486,240.49 × 12,073,271.50 - Step 4: Simplify right side
21,365,938.18x = 355,995,386,950,063 - Step 5: Solve for x
x = 355,995,386,950,063/21,365,938.18 - Step 6: Final answer
x = 16,661,818.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.