Finding the Fourth Proportional to 12,373,769.30, 18,569,511.30 and 6,976,690.70
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Solution
The fourth proportional to 12,373,769.30, 18,569,511.30 and 6,976,690.70 is: 10,470,030.08
Step by Step Solution
- Step 1: Write the proportion equation
12,373,769.30 : 18,569,511.30 = 6,976,690.70 : x - Step 2: Convert to fraction form
12,373,769.30/18,569,511.30 = 6,976,690.70/x - Step 3: Cross multiply
12,373,769.30x = 18,569,511.30 × 6,976,690.70 - Step 4: Simplify right side
12,373,769.30x = 129,553,736,790,254.92 - Step 5: Solve for x
x = 129,553,736,790,254.92/12,373,769.30 - Step 6: Final answer
x = 10,470,030.08
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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.