Finding the Fourth Proportional to 8,185,213,809.20, 12,277,820,713.80 and 4,465,977,114.80
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Solution
The fourth proportional to 8,185,213,809.20, 12,277,820,713.80 and 4,465,977,114.80 is: 6,698,965,672.20
Step by Step Solution
- Step 1: Write the proportion equation
8,185,213,809.20 : 12,277,820,713.80 = 4,465,977,114.80 : x - Step 2: Convert to fraction form
8,185,213,809.20/12,277,820,713.80 = 4,465,977,114.80/x - Step 3: Cross multiply
8,185,213,809.20x = 12,277,820,713.80 × 4,465,977,114.80 - Step 4: Simplify right side
8,185,213,809.20x = 54,832,466,327,448,199,168 - Step 5: Solve for x
x = 54,832,466,327,448,199,168/8,185,213,809.20 - Step 6: Final answer
x = 6,698,965,672.20
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Double scale
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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.