Finding the Fourth Proportional to 13,207,220.20, 19,810,830.30 and 8,424,251.20
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Solution
The fourth proportional to 13,207,220.20, 19,810,830.30 and 8,424,251.20 is: 12,636,376.80
Step by Step Solution
- Step 1: Write the proportion equation
13,207,220.20 : 19,810,830.30 = 8,424,251.20 : x - Step 2: Convert to fraction form
13,207,220.20/19,810,830.30 = 8,424,251.20/x - Step 3: Cross multiply
13,207,220.20x = 19,810,830.30 × 8,424,251.20 - Step 4: Simplify right side
13,207,220.20x = 166,891,410,927,771.34 - Step 5: Solve for x
x = 166,891,410,927,771.34/13,207,220.20 - Step 6: Final answer
x = 12,636,376.80
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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.