Finding the Fourth Proportional to 7,631,851,179.99, 11,447,780,763.69 and 2,391,867,499.44
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Solution
The fourth proportional to 7,631,851,179.99, 11,447,780,763.69 and 2,391,867,499.44 is: 3,587,802,500.81
Step by Step Solution
- Step 1: Write the proportion equation
7,631,851,179.99 : 11,447,780,763.69 = 2,391,867,499.44 : x - Step 2: Convert to fraction form
7,631,851,179.99/11,447,780,763.69 = 2,391,867,499.44/x - Step 3: Cross multiply
7,631,851,179.99x = 11,447,780,763.69 × 2,391,867,499.44 - Step 4: Simplify right side
7,631,851,179.99x = 27,381,574,749,384,536,064 - Step 5: Solve for x
x = 27,381,574,749,384,536,064/7,631,851,179.99 - Step 6: Final answer
x = 3,587,802,500.81
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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.