Finding the Fourth Proportional to 12,878,884.40, 19,327,183.97 and 5,305,850.15
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Solution
The fourth proportional to 12,878,884.40, 19,327,183.97 and 5,305,850.15 is: 7,962,424.28
Step by Step Solution
- Step 1: Write the proportion equation
12,878,884.40 : 19,327,183.97 = 5,305,850.15 : x - Step 2: Convert to fraction form
12,878,884.40/19,327,183.97 = 5,305,850.15/x - Step 3: Cross multiply
12,878,884.40x = 19,327,183.97 × 5,305,850.15 - Step 4: Simplify right side
12,878,884.40x = 102,547,141,843,136.92 - Step 5: Solve for x
x = 102,547,141,843,136.92/12,878,884.40 - Step 6: Final answer
x = 7,962,424.28
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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.