Finding the Fourth Proportional to 7,419,620,615.80, 11,129,430,923.70 and 2,512,294,421.80
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Solution
The fourth proportional to 7,419,620,615.80, 11,129,430,923.70 and 2,512,294,421.80 is: 3,768,441,632.70
Step by Step Solution
- Step 1: Write the proportion equation
7,419,620,615.80 : 11,129,430,923.70 = 2,512,294,421.80 : x - Step 2: Convert to fraction form
7,419,620,615.80/11,129,430,923.70 = 2,512,294,421.80/x - Step 3: Cross multiply
7,419,620,615.80x = 11,129,430,923.70 × 2,512,294,421.80 - Step 4: Simplify right side
7,419,620,615.80x = 27,960,407,227,419,934,720 - Step 5: Solve for x
x = 27,960,407,227,419,934,720/7,419,620,615.80 - Step 6: Final answer
x = 3,768,441,632.70
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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.