Finding the Fourth Proportional to 13,631,309.12, 18,810,903.84 and 7,519,736
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Solution
The fourth proportional to 13,631,309.12, 18,810,903.84 and 7,519,736 is: 10,377,068.67
Step by Step Solution
- Step 1: Write the proportion equation
13,631,309.12 : 18,810,903.84 = 7,519,736 : x - Step 2: Convert to fraction form
13,631,309.12/18,810,903.84 = 7,519,736/x - Step 3: Cross multiply
13,631,309.12x = 18,810,903.84 × 7,519,736 - Step 4: Simplify right side
13,631,309.12x = 141,453,030,798,186.25 - Step 5: Solve for x
x = 141,453,030,798,186.25/13,631,309.12 - Step 6: Final answer
x = 10,377,068.67
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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.