Finding the Fourth Proportional to 12,631,329.12, 18,938,847.08 and 4,955,749.68
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Solution
The fourth proportional to 12,631,329.12, 18,938,847.08 and 4,955,749.68 is: 7,430,428.30
Step by Step Solution
- Step 1: Write the proportion equation
12,631,329.12 : 18,938,847.08 = 4,955,749.68 : x - Step 2: Convert to fraction form
12,631,329.12/18,938,847.08 = 4,955,749.68/x - Step 3: Cross multiply
12,631,329.12x = 18,938,847.08 × 4,955,749.68 - Step 4: Simplify right side
12,631,329.12x = 93,856,185,356,278.92 - Step 5: Solve for x
x = 93,856,185,356,278.92/12,631,329.12 - Step 6: Final answer
x = 7,430,428.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.