Finding the Fourth Proportional to 75,705,683.08, 113,559,435.26 and 21,114,944.55
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Solution
The fourth proportional to 75,705,683.08, 113,559,435.26 and 21,114,944.55 is: 31,672,670.80
Step by Step Solution
- Step 1: Write the proportion equation
75,705,683.08 : 113,559,435.26 = 21,114,944.55 : x - Step 2: Convert to fraction form
75,705,683.08/113,559,435.26 = 21,114,944.55/x - Step 3: Cross multiply
75,705,683.08x = 113,559,435.26 × 21,114,944.55 - Step 4: Simplify right side
75,705,683.08x = 2,397,801,177,970,843 - Step 5: Solve for x
x = 2,397,801,177,970,843/75,705,683.08 - Step 6: Final answer
x = 31,672,670.80
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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.