Finding the Fourth Proportional to 145,536,207.30, 218,304,310.95 and 72,764,219.70
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Solution
The fourth proportional to 145,536,207.30, 218,304,310.95 and 72,764,219.70 is: 109,146,329.55
Step by Step Solution
- Step 1: Write the proportion equation
145,536,207.30 : 218,304,310.95 = 72,764,219.70 : x - Step 2: Convert to fraction form
145,536,207.30/218,304,310.95 = 72,764,219.70/x - Step 3: Cross multiply
145,536,207.30x = 218,304,310.95 × 72,764,219.70 - Step 4: Simplify right side
145,536,207.30x = 15,884,742,843,422,916 - Step 5: Solve for x
x = 15,884,742,843,422,916/145,536,207.30 - Step 6: Final answer
x = 109,146,329.55
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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.