Finding the Fourth Proportional to 13,019,983.98, 19,491,664.92 and 8,691,297.84
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Solution
The fourth proportional to 13,019,983.98, 19,491,664.92 and 8,691,297.84 is: 13,011,372.78
Step by Step Solution
- Step 1: Write the proportion equation
13,019,983.98 : 19,491,664.92 = 8,691,297.84 : x - Step 2: Convert to fraction form
13,019,983.98/19,491,664.92 = 8,691,297.84/x - Step 3: Cross multiply
13,019,983.98x = 19,491,664.92 × 8,691,297.84 - Step 4: Simplify right side
13,019,983.98x = 169,407,865,217,199.78 - Step 5: Solve for x
x = 169,407,865,217,199.78/13,019,983.98 - Step 6: Final answer
x = 13,011,372.78
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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.