Finding the Fourth Proportional to 7,073,622.63, 9,762,632.99 and 3,976,401.09
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Solution
The fourth proportional to 7,073,622.63, 9,762,632.99 and 3,976,401.09 is: 5,488,014.62
Step by Step Solution
- Step 1: Write the proportion equation
7,073,622.63 : 9,762,632.99 = 3,976,401.09 : x - Step 2: Convert to fraction form
7,073,622.63/9,762,632.99 = 3,976,401.09/x - Step 3: Cross multiply
7,073,622.63x = 9,762,632.99 × 3,976,401.09 - Step 4: Simplify right side
7,073,622.63x = 38,820,144,442,823.95 - Step 5: Solve for x
x = 38,820,144,442,823.95/7,073,622.63 - Step 6: Final answer
x = 5,488,014.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.