Finding the Fourth Proportional to 8,579,876.04, 12,869,732.70 and 2,190,040.20
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Solution
The fourth proportional to 8,579,876.04, 12,869,732.70 and 2,190,040.20 is: 3,285,039.53
Step by Step Solution
- Step 1: Write the proportion equation
8,579,876.04 : 12,869,732.70 = 2,190,040.20 : x - Step 2: Convert to fraction form
8,579,876.04/12,869,732.70 = 2,190,040.20/x - Step 3: Cross multiply
8,579,876.04x = 12,869,732.70 × 2,190,040.20 - Step 4: Simplify right side
8,579,876.04x = 28,185,231,976,254.54 - Step 5: Solve for x
x = 28,185,231,976,254.54/8,579,876.04 - Step 6: Final answer
x = 3,285,039.53
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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.