Finding the Fourth Proportional to 10,117,370.70, 15,176,056.05 and 8,345,900.70
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Solution
The fourth proportional to 10,117,370.70, 15,176,056.05 and 8,345,900.70 is: 12,518,851.05
Step by Step Solution
- Step 1: Write the proportion equation
10,117,370.70 : 15,176,056.05 = 8,345,900.70 : x - Step 2: Convert to fraction form
10,117,370.70/15,176,056.05 = 8,345,900.70/x - Step 3: Cross multiply
10,117,370.70x = 15,176,056.05 × 8,345,900.70 - Step 4: Simplify right side
10,117,370.70x = 126,657,856,810,934.25 - Step 5: Solve for x
x = 126,657,856,810,934.25/10,117,370.70 - Step 6: Final answer
x = 12,518,851.05
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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.