Finding the Fourth Proportional to 145,073,252.20, 217,609,878.30 and 101,991,101.80
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Solution
The fourth proportional to 145,073,252.20, 217,609,878.30 and 101,991,101.80 is: 152,986,652.70
Step by Step Solution
- Step 1: Write the proportion equation
145,073,252.20 : 217,609,878.30 = 101,991,101.80 : x - Step 2: Convert to fraction form
145,073,252.20/217,609,878.30 = 101,991,101.80/x - Step 3: Cross multiply
145,073,252.20x = 217,609,878.30 × 101,991,101.80 - Step 4: Simplify right side
145,073,252.20x = 22,194,271,250,380,912 - Step 5: Solve for x
x = 22,194,271,250,380,912/145,073,252.20 - Step 6: Final answer
x = 152,986,652.70
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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.