Finding the Fourth Proportional to 5,439,919.40, 8,160,656.70 and 1,845,852.20
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Solution
The fourth proportional to 5,439,919.40, 8,160,656.70 and 1,845,852.20 is: 2,769,042.15
Step by Step Solution
- Step 1: Write the proportion equation
5,439,919.40 : 8,160,656.70 = 1,845,852.20 : x - Step 2: Convert to fraction form
5,439,919.40/8,160,656.70 = 1,845,852.20/x - Step 3: Cross multiply
5,439,919.40x = 8,160,656.70 × 1,845,852.20 - Step 4: Simplify right side
5,439,919.40x = 15,063,366,123,139.74 - Step 5: Solve for x
x = 15,063,366,123,139.74/5,439,919.40 - Step 6: Final answer
x = 2,769,042.15
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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.