Finding the Fourth Proportional to 2,163,891.68, 2,985,164.40 and 1,400,191.84
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Solution
The fourth proportional to 2,163,891.68, 2,985,164.40 and 1,400,191.84 is: 1,931,613.71
Step by Step Solution
- Step 1: Write the proportion equation
2,163,891.68 : 2,985,164.40 = 1,400,191.84 : x - Step 2: Convert to fraction form
2,163,891.68/2,985,164.40 = 1,400,191.84/x - Step 3: Cross multiply
2,163,891.68x = 2,985,164.40 × 1,400,191.84 - Step 4: Simplify right side
2,163,891.68x = 4,179,802,833,938.50 - Step 5: Solve for x
x = 4,179,802,833,938.50/2,163,891.68 - Step 6: Final answer
x = 1,931,613.71
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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.