Finding the Fourth Proportional to 10,512,026.80, 15,768,040.20 and 8,244,545.20
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Solution
The fourth proportional to 10,512,026.80, 15,768,040.20 and 8,244,545.20 is: 12,366,817.80
Step by Step Solution
- Step 1: Write the proportion equation
10,512,026.80 : 15,768,040.20 = 8,244,545.20 : x - Step 2: Convert to fraction form
10,512,026.80/15,768,040.20 = 8,244,545.20/x - Step 3: Cross multiply
10,512,026.80x = 15,768,040.20 × 8,244,545.20 - Step 4: Simplify right side
10,512,026.80x = 130,000,320,144,317.03 - Step 5: Solve for x
x = 130,000,320,144,317.03/10,512,026.80 - Step 6: Final answer
x = 12,366,817.80
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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.