Finding the Fourth Proportional to 139,560,213.12, 192,593,103.36 and 77,679,223.68
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Solution
The fourth proportional to 139,560,213.12, 192,593,103.36 and 77,679,223.68 is: 107,197,333.83
Step by Step Solution
- Step 1: Write the proportion equation
139,560,213.12 : 192,593,103.36 = 77,679,223.68 : x - Step 2: Convert to fraction form
139,560,213.12/192,593,103.36 = 77,679,223.68/x - Step 3: Cross multiply
139,560,213.12x = 192,593,103.36 × 77,679,223.68 - Step 4: Simplify right side
139,560,213.12x = 14,960,482,755,126,802 - Step 5: Solve for x
x = 14,960,482,755,126,802/139,560,213.12 - Step 6: Final answer
x = 107,197,333.83
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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.