Finding the Fourth Proportional to 147,624,138.30, 221,436,207.45 and 70,928,672.70
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Solution
The fourth proportional to 147,624,138.30, 221,436,207.45 and 70,928,672.70 is: 106,393,009.05
Step by Step Solution
- Step 1: Write the proportion equation
147,624,138.30 : 221,436,207.45 = 70,928,672.70 : x - Step 2: Convert to fraction form
147,624,138.30/221,436,207.45 = 70,928,672.70/x - Step 3: Cross multiply
147,624,138.30x = 221,436,207.45 × 70,928,672.70 - Step 4: Simplify right side
147,624,138.30x = 15,706,176,282,150,352 - Step 5: Solve for x
x = 15,706,176,282,150,352/147,624,138.30 - Step 6: Final answer
x = 106,393,009.05
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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.