Finding the Fourth Proportional to 8,278,886.10, 12,418,329.15 and 2,214,553.80
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Solution
The fourth proportional to 8,278,886.10, 12,418,329.15 and 2,214,553.80 is: 3,321,830.70
Step by Step Solution
- Step 1: Write the proportion equation
8,278,886.10 : 12,418,329.15 = 2,214,553.80 : x - Step 2: Convert to fraction form
8,278,886.10/12,418,329.15 = 2,214,553.80/x - Step 3: Cross multiply
8,278,886.10x = 12,418,329.15 × 2,214,553.80 - Step 4: Simplify right side
8,278,886.10x = 27,501,058,008,783.27 - Step 5: Solve for x
x = 27,501,058,008,783.27/8,278,886.10 - Step 6: Final answer
x = 3,321,830.70
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1.5x scale
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.