Finding the Fourth Proportional to 7,169,113.80, 10,753,670.70 and 3,180,025.80
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Solution
The fourth proportional to 7,169,113.80, 10,753,670.70 and 3,180,025.80 is: 4,770,038.70
Step by Step Solution
- Step 1: Write the proportion equation
7,169,113.80 : 10,753,670.70 = 3,180,025.80 : x - Step 2: Convert to fraction form
7,169,113.80/10,753,670.70 = 3,180,025.80/x - Step 3: Cross multiply
7,169,113.80x = 10,753,670.70 × 3,180,025.80 - Step 4: Simplify right side
7,169,113.80x = 34,196,950,270,704.05 - Step 5: Solve for x
x = 34,196,950,270,704.05/7,169,113.80 - Step 6: Final answer
x = 4,770,038.70
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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.