Finding the Fourth Proportional to 94,212,430.60, 141,318,645.90 and 87,409,985.80
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Solution
The fourth proportional to 94,212,430.60, 141,318,645.90 and 87,409,985.80 is: 131,114,978.70
Step by Step Solution
- Step 1: Write the proportion equation
94,212,430.60 : 141,318,645.90 = 87,409,985.80 : x - Step 2: Convert to fraction form
94,212,430.60/141,318,645.90 = 87,409,985.80/x - Step 3: Cross multiply
94,212,430.60x = 141,318,645.90 × 87,409,985.80 - Step 4: Simplify right side
94,212,430.60x = 12,352,660,831,394,228 - Step 5: Solve for x
x = 12,352,660,831,394,228/94,212,430.60 - Step 6: Final answer
x = 131,114,978.70
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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.