Finding the Fourth Proportional to 3,888,926.40, 5,366,989.62 and 2,170,075.62
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Solution
The fourth proportional to 3,888,926.40, 5,366,989.62 and 2,170,075.62 is: 2,994,855.68
Step by Step Solution
- Step 1: Write the proportion equation
3,888,926.40 : 5,366,989.62 = 2,170,075.62 : x - Step 2: Convert to fraction form
3,888,926.40/5,366,989.62 = 2,170,075.62/x - Step 3: Cross multiply
3,888,926.40x = 5,366,989.62 × 2,170,075.62 - Step 4: Simplify right side
3,888,926.40x = 11,646,773,327,155.06 - Step 5: Solve for x
x = 11,646,773,327,155.06/3,888,926.40 - Step 6: Final answer
x = 2,994,855.68
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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.