Finding the Fourth Proportional to 5,665,215,515.10, 8,497,823,272.65 and 5,320,558,311.90
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Solution
The fourth proportional to 5,665,215,515.10, 8,497,823,272.65 and 5,320,558,311.90 is: 7,980,837,467.85
Step by Step Solution
- Step 1: Write the proportion equation
5,665,215,515.10 : 8,497,823,272.65 = 5,320,558,311.90 : x - Step 2: Convert to fraction form
5,665,215,515.10/8,497,823,272.65 = 5,320,558,311.90/x - Step 3: Cross multiply
5,665,215,515.10x = 8,497,823,272.65 × 5,320,558,311.90 - Step 4: Simplify right side
5,665,215,515.10x = 45,213,164,246,355,214,336 - Step 5: Solve for x
x = 45,213,164,246,355,214,336/5,665,215,515.10 - Step 6: Final answer
x = 7,980,837,467.85
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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.