Finding the Fourth Proportional to 5,291,997,396.99, 7,939,191,987.78 and 1,750,730,528.53
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Solution
The fourth proportional to 5,291,997,396.99, 7,939,191,987.78 and 1,750,730,528.53 is: 2,626,491,425.10
Step by Step Solution
- Step 1: Write the proportion equation
5,291,997,396.99 : 7,939,191,987.78 = 1,750,730,528.53 : x - Step 2: Convert to fraction form
5,291,997,396.99/7,939,191,987.78 = 1,750,730,528.53/x - Step 3: Cross multiply
5,291,997,396.99x = 7,939,191,987.78 × 1,750,730,528.53 - Step 4: Simplify right side
5,291,997,396.99x = 13,899,385,784,867,219,456 - Step 5: Solve for x
x = 13,899,385,784,867,219,456/5,291,997,396.99 - Step 6: Final answer
x = 2,626,491,425.10
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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.