Finding the Fourth Proportional to 18,918,862.05, 28,382,278.28 and 6,138,366.69
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Solution
The fourth proportional to 18,918,862.05, 28,382,278.28 and 6,138,366.69 is: 9,208,843.06
Step by Step Solution
- Step 1: Write the proportion equation
18,918,862.05 : 28,382,278.28 = 6,138,366.69 : x - Step 2: Convert to fraction form
18,918,862.05/28,382,278.28 = 6,138,366.69/x - Step 3: Cross multiply
18,918,862.05x = 28,382,278.28 × 6,138,366.69 - Step 4: Simplify right side
18,918,862.05x = 174,220,831,549,570.66 - Step 5: Solve for x
x = 174,220,831,549,570.66/18,918,862.05 - Step 6: Final answer
x = 9,208,843.06
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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.