Finding the Fourth Proportional to 8,319,840.60, 12,498,423.30 and 8,002,579.80
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Solution
The fourth proportional to 8,319,840.60, 12,498,423.30 and 8,002,579.80 is: 12,021,820.45
Step by Step Solution
- Step 1: Write the proportion equation
8,319,840.60 : 12,498,423.30 = 8,002,579.80 : x - Step 2: Convert to fraction form
8,319,840.60/12,498,423.30 = 8,002,579.80/x - Step 3: Cross multiply
8,319,840.60x = 12,498,423.30 × 8,002,579.80 - Step 4: Simplify right side
8,319,840.60x = 100,019,629,832,429.34 - Step 5: Solve for x
x = 100,019,629,832,429.34/8,319,840.60 - Step 6: Final answer
x = 12,021,820.45
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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.