Finding the Fourth Proportional to 12,134,479.20, 18,201,718.80 and 3,498,562.95
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Solution
The fourth proportional to 12,134,479.20, 18,201,718.80 and 3,498,562.95 is: 5,247,844.43
Step by Step Solution
- Step 1: Write the proportion equation
12,134,479.20 : 18,201,718.80 = 3,498,562.95 : x - Step 2: Convert to fraction form
12,134,479.20/18,201,718.80 = 3,498,562.95/x - Step 3: Cross multiply
12,134,479.20x = 18,201,718.80 × 3,498,562.95 - Step 4: Simplify right side
12,134,479.20x = 63,679,859,019,998.47 - Step 5: Solve for x
x = 63,679,859,019,998.47/12,134,479.20 - Step 6: Final answer
x = 5,247,844.43
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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.