Finding the Fourth Proportional to 139,560,216.12, 192,593,107.50 and 77,679,226.68
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Solution
The fourth proportional to 139,560,216.12, 192,593,107.50 and 77,679,226.68 is: 107,197,337.97
Step by Step Solution
- Step 1: Write the proportion equation
139,560,216.12 : 192,593,107.50 = 77,679,226.68 : x - Step 2: Convert to fraction form
139,560,216.12/192,593,107.50 = 77,679,226.68/x - Step 3: Cross multiply
139,560,216.12x = 192,593,107.50 × 77,679,226.68 - Step 4: Simplify right side
139,560,216.12x = 14,960,483,654,498,110 - Step 5: Solve for x
x = 14,960,483,654,498,110/139,560,216.12 - Step 6: Final answer
x = 107,197,337.97
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1.5x scale
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.