Finding the Fourth Proportional to 12,462,909.80, 18,694,364.70 and 4,481,853.80
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Solution
The fourth proportional to 12,462,909.80, 18,694,364.70 and 4,481,853.80 is: 6,722,780.70
Step by Step Solution
- Step 1: Write the proportion equation
12,462,909.80 : 18,694,364.70 = 4,481,853.80 : x - Step 2: Convert to fraction form
12,462,909.80/18,694,364.70 = 4,481,853.80/x - Step 3: Cross multiply
12,462,909.80x = 18,694,364.70 × 4,481,853.80 - Step 4: Simplify right side
12,462,909.80x = 83,785,409,469,280.86 - Step 5: Solve for x
x = 83,785,409,469,280.86/12,462,909.80 - Step 6: Final answer
x = 6,722,780.70
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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.