Finding the Fourth Proportional to 75,618,122.40, 113,175,241.20 and 69,571,504.80
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Solution
The fourth proportional to 75,618,122.40, 113,175,241.20 and 69,571,504.80 is: 104,125,460.76
Step by Step Solution
- Step 1: Write the proportion equation
75,618,122.40 : 113,175,241.20 = 69,571,504.80 : x - Step 2: Convert to fraction form
75,618,122.40/113,175,241.20 = 69,571,504.80/x - Step 3: Cross multiply
75,618,122.40x = 113,175,241.20 × 69,571,504.80 - Step 4: Simplify right side
75,618,122.40x = 7,873,771,836,386,958 - Step 5: Solve for x
x = 7,873,771,836,386,958/75,618,122.40 - Step 6: Final answer
x = 104,125,460.76
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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.