Finding the Fourth Proportional to 99,653,312.70, 149,479,969.05 and 45,905,600.70
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Solution
The fourth proportional to 99,653,312.70, 149,479,969.05 and 45,905,600.70 is: 68,858,401.05
Step by Step Solution
- Step 1: Write the proportion equation
99,653,312.70 : 149,479,969.05 = 45,905,600.70 : x - Step 2: Convert to fraction form
99,653,312.70/149,479,969.05 = 45,905,600.70/x - Step 3: Cross multiply
99,653,312.70x = 149,479,969.05 × 45,905,600.70 - Step 4: Simplify right side
99,653,312.70x = 6,861,967,771,857,659 - Step 5: Solve for x
x = 6,861,967,771,857,659/99,653,312.70 - Step 6: Final answer
x = 68,858,401.05
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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.