Finding the Fourth Proportional to 9,919,621.80, 14,879,432.70 and 4,250,917.80
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Solution
The fourth proportional to 9,919,621.80, 14,879,432.70 and 4,250,917.80 is: 6,376,376.70
Step by Step Solution
- Step 1: Write the proportion equation
9,919,621.80 : 14,879,432.70 = 4,250,917.80 : x - Step 2: Convert to fraction form
9,919,621.80/14,879,432.70 = 4,250,917.80/x - Step 3: Cross multiply
9,919,621.80x = 14,879,432.70 × 4,250,917.80 - Step 4: Simplify right side
9,919,621.80x = 63,251,245,318,332.05 - Step 5: Solve for x
x = 63,251,245,318,332.05/9,919,621.80 - Step 6: Final answer
x = 6,376,376.70
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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.