Finding the Fourth Proportional to 81,532,656.30, 122,298,984.45 and 27,679,968.30
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Solution
The fourth proportional to 81,532,656.30, 122,298,984.45 and 27,679,968.30 is: 41,519,952.45
Step by Step Solution
- Step 1: Write the proportion equation
81,532,656.30 : 122,298,984.45 = 27,679,968.30 : x - Step 2: Convert to fraction form
81,532,656.30/122,298,984.45 = 27,679,968.30/x - Step 3: Cross multiply
81,532,656.30x = 122,298,984.45 × 27,679,968.30 - Step 4: Simplify right side
81,532,656.30x = 3,385,232,012,698,193 - Step 5: Solve for x
x = 3,385,232,012,698,193/81,532,656.30 - Step 6: Final answer
x = 41,519,952.45
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Similar ratio
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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.