Finding the Fourth Proportional to 75,551,496.40, 113,327,244.60 and 69,756,821.20
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Solution
The fourth proportional to 75,551,496.40, 113,327,244.60 and 69,756,821.20 is: 104,635,231.80
Step by Step Solution
- Step 1: Write the proportion equation
75,551,496.40 : 113,327,244.60 = 69,756,821.20 : x - Step 2: Convert to fraction form
75,551,496.40/113,327,244.60 = 69,756,821.20/x - Step 3: Cross multiply
75,551,496.40x = 113,327,244.60 × 69,756,821.20 - Step 4: Simplify right side
75,551,496.40x = 7,905,348,338,650,865 - Step 5: Solve for x
x = 7,905,348,338,650,865/75,551,496.40 - Step 6: Final answer
x = 104,635,231.80
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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.