Finding the Fourth Proportional to 147,624,244.80, 221,436,367.20 and 70,928,779.20
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Solution
The fourth proportional to 147,624,244.80, 221,436,367.20 and 70,928,779.20 is: 106,393,168.80
Step by Step Solution
- Step 1: Write the proportion equation
147,624,244.80 : 221,436,367.20 = 70,928,779.20 : x - Step 2: Convert to fraction form
147,624,244.80/221,436,367.20 = 70,928,779.20/x - Step 3: Cross multiply
147,624,244.80x = 221,436,367.20 × 70,928,779.20 - Step 4: Simplify right side
147,624,244.80x = 15,706,211,195,978,922 - Step 5: Solve for x
x = 15,706,211,195,978,922/147,624,244.80 - Step 6: Final answer
x = 106,393,168.80
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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.