Finding the Fourth Proportional to 3,918,022.08, 5,406,573.84 and 2,198,810.45
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Solution
The fourth proportional to 3,918,022.08, 5,406,573.84 and 2,198,810.45 is: 3,034,191.94
Step by Step Solution
- Step 1: Write the proportion equation
3,918,022.08 : 5,406,573.84 = 2,198,810.45 : x - Step 2: Convert to fraction form
3,918,022.08/5,406,573.84 = 2,198,810.45/x - Step 3: Cross multiply
3,918,022.08x = 5,406,573.84 × 2,198,810.45 - Step 4: Simplify right side
3,918,022.08x = 11,888,031,031,055.76 - Step 5: Solve for x
x = 11,888,031,031,055.76/3,918,022.08 - Step 6: Final answer
x = 3,034,191.94
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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.