Finding the Fourth Proportional to 130,236,452.20, 195,186,716.70 and 99,793,412.20
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Solution
The fourth proportional to 130,236,452.20, 195,186,716.70 and 99,793,412.20 is: 149,561,418.07
Step by Step Solution
- Step 1: Write the proportion equation
130,236,452.20 : 195,186,716.70 = 99,793,412.20 : x - Step 2: Convert to fraction form
130,236,452.20/195,186,716.70 = 99,793,412.20/x - Step 3: Cross multiply
130,236,452.20x = 195,186,716.70 × 99,793,412.20 - Step 4: Simplify right side
130,236,452.20x = 19,478,348,475,607,724 - Step 5: Solve for x
x = 19,478,348,475,607,724/130,236,452.20 - Step 6: Final answer
x = 149,561,418.07
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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.