Finding the Fourth Proportional to 99,387,002.70, 149,080,504.05 and 84,270,458.70
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Solution
The fourth proportional to 99,387,002.70, 149,080,504.05 and 84,270,458.70 is: 126,405,688.05
Step by Step Solution
- Step 1: Write the proportion equation
99,387,002.70 : 149,080,504.05 = 84,270,458.70 : x - Step 2: Convert to fraction form
99,387,002.70/149,080,504.05 = 84,270,458.70/x - Step 3: Cross multiply
99,387,002.70x = 149,080,504.05 × 84,270,458.70 - Step 4: Simplify right side
99,387,002.70x = 12,563,082,459,520,710 - Step 5: Solve for x
x = 12,563,082,459,520,710/99,387,002.70 - Step 6: Final answer
x = 126,405,688.05
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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.