Finding the Fourth Proportional to 71,115,806.40, 106,673,709.60 and 53,199,902.40
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Solution
The fourth proportional to 71,115,806.40, 106,673,709.60 and 53,199,902.40 is: 79,799,853.60
Step by Step Solution
- Step 1: Write the proportion equation
71,115,806.40 : 106,673,709.60 = 53,199,902.40 : x - Step 2: Convert to fraction form
71,115,806.40/106,673,709.60 = 53,199,902.40/x - Step 3: Cross multiply
71,115,806.40x = 106,673,709.60 × 53,199,902.40 - Step 4: Simplify right side
71,115,806.40x = 5,675,030,939,365,943 - Step 5: Solve for x
x = 5,675,030,939,365,943/71,115,806.40 - Step 6: Final answer
x = 79,799,853.60
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1.5x scale
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.