Finding the Fourth Proportional to 201,912,138.60, 302,868,207.90 and 153,539,197.80
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Solution
The fourth proportional to 201,912,138.60, 302,868,207.90 and 153,539,197.80 is: 230,308,796.70
Step by Step Solution
- Step 1: Write the proportion equation
201,912,138.60 : 302,868,207.90 = 153,539,197.80 : x - Step 2: Convert to fraction form
201,912,138.60/302,868,207.90 = 153,539,197.80/x - Step 3: Cross multiply
201,912,138.60x = 302,868,207.90 × 153,539,197.80 - Step 4: Simplify right side
201,912,138.60x = 46,502,141,680,089,624 - Step 5: Solve for x
x = 46,502,141,680,089,624/201,912,138.60 - Step 6: Final answer
x = 230,308,796.70
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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.