Finding the Fourth Proportional to 12,074,289.12, 16,664,883.84 and 6,921,100.80
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Solution
The fourth proportional to 12,074,289.12, 16,664,883.84 and 6,921,100.80 is: 9,552,474.66
Step by Step Solution
- Step 1: Write the proportion equation
12,074,289.12 : 16,664,883.84 = 6,921,100.80 : x - Step 2: Convert to fraction form
12,074,289.12/16,664,883.84 = 6,921,100.80/x - Step 3: Cross multiply
12,074,289.12x = 16,664,883.84 × 6,921,100.80 - Step 4: Simplify right side
12,074,289.12x = 115,339,340,876,931.06 - Step 5: Solve for x
x = 115,339,340,876,931.06/12,074,289.12 - Step 6: Final answer
x = 9,552,474.66
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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.