Finding the Fourth Proportional to 130,408,851.20, 195,613,276.80 and 69,942,675.20
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Solution
The fourth proportional to 130,408,851.20, 195,613,276.80 and 69,942,675.20 is: 104,914,012.80
Step by Step Solution
- Step 1: Write the proportion equation
130,408,851.20 : 195,613,276.80 = 69,942,675.20 : x - Step 2: Convert to fraction form
130,408,851.20/195,613,276.80 = 69,942,675.20/x - Step 3: Cross multiply
130,408,851.20x = 195,613,276.80 × 69,942,675.20 - Step 4: Simplify right side
130,408,851.20x = 13,681,715,884,030,096 - Step 5: Solve for x
x = 13,681,715,884,030,096/130,408,851.20 - Step 6: Final answer
x = 104,914,012.80
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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.