Finding the Fourth Proportional to 5,089,673,233.80, 7,634,509,850.70 and 2,640,793,105.80
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Solution
The fourth proportional to 5,089,673,233.80, 7,634,509,850.70 and 2,640,793,105.80 is: 3,961,189,658.70
Step by Step Solution
- Step 1: Write the proportion equation
5,089,673,233.80 : 7,634,509,850.70 = 2,640,793,105.80 : x - Step 2: Convert to fraction form
5,089,673,233.80/7,634,509,850.70 = 2,640,793,105.80/x - Step 3: Cross multiply
5,089,673,233.80x = 7,634,509,850.70 × 2,640,793,105.80 - Step 4: Simplify right side
5,089,673,233.80x = 20,161,160,979,890,749,440 - Step 5: Solve for x
x = 20,161,160,979,890,749,440/5,089,673,233.80 - Step 6: Final answer
x = 3,961,189,658.70
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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.