Finding the Fourth Proportional to 8,319,127.80, 12,460,029.30 and 6,826,135.80
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Solution
The fourth proportional to 8,319,127.80, 12,460,029.30 and 6,826,135.80 is: 10,223,890.55
Step by Step Solution
- Step 1: Write the proportion equation
8,319,127.80 : 12,460,029.30 = 6,826,135.80 : x - Step 2: Convert to fraction form
8,319,127.80/12,460,029.30 = 6,826,135.80/x - Step 3: Cross multiply
8,319,127.80x = 12,460,029.30 × 6,826,135.80 - Step 4: Simplify right side
8,319,127.80x = 85,053,852,073,778.94 - Step 5: Solve for x
x = 85,053,852,073,778.94/8,319,127.80 - Step 6: Final answer
x = 10,223,890.55
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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.