Finding the Fourth Proportional to 18,185,903.30, 27,282,791.55 and 5,407,699.70
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Solution
The fourth proportional to 18,185,903.30, 27,282,791.55 and 5,407,699.70 is: 8,112,720.12
Step by Step Solution
- Step 1: Write the proportion equation
18,185,903.30 : 27,282,791.55 = 5,407,699.70 : x - Step 2: Convert to fraction form
18,185,903.30/27,282,791.55 = 5,407,699.70/x - Step 3: Cross multiply
18,185,903.30x = 27,282,791.55 × 5,407,699.70 - Step 4: Simplify right side
18,185,903.30x = 147,537,143,680,097.53 - Step 5: Solve for x
x = 147,537,143,680,097.53/18,185,903.30 - Step 6: Final answer
x = 8,112,720.12
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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.