Finding the Fourth Proportional to 3,612,918.68, 4,985,369.53 and 1,980,896.58
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Solution
The fourth proportional to 3,612,918.68, 4,985,369.53 and 1,980,896.58 is: 2,733,386.04
Step by Step Solution
- Step 1: Write the proportion equation
3,612,918.68 : 4,985,369.53 = 1,980,896.58 : x - Step 2: Convert to fraction form
3,612,918.68/4,985,369.53 = 1,980,896.58/x - Step 3: Cross multiply
3,612,918.68x = 4,985,369.53 × 1,980,896.58 - Step 4: Simplify right side
3,612,918.68x = 9,875,501,473,184.46 - Step 5: Solve for x
x = 9,875,501,473,184.46/3,612,918.68 - Step 6: Final answer
x = 2,733,386.04
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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.