Finding the Fourth Proportional to 75,665,564.40, 113,498,346.60 and 49,837,531.80
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Solution
The fourth proportional to 75,665,564.40, 113,498,346.60 and 49,837,531.80 is: 74,756,297.70
Step by Step Solution
- Step 1: Write the proportion equation
75,665,564.40 : 113,498,346.60 = 49,837,531.80 : x - Step 2: Convert to fraction form
75,665,564.40/113,498,346.60 = 49,837,531.80/x - Step 3: Cross multiply
75,665,564.40x = 113,498,346.60 × 49,837,531.80 - Step 4: Simplify right side
75,665,564.40x = 5,656,477,457,924,921 - Step 5: Solve for x
x = 5,656,477,457,924,921/75,665,564.40 - Step 6: Final answer
x = 74,756,297.70
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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.