Finding the Fourth Proportional to 21,967,129.97, 30,314,479.11 and 12,043,848.99
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Solution
The fourth proportional to 21,967,129.97, 30,314,479.11 and 12,043,848.99 is: 16,620,423.75
Step by Step Solution
- Step 1: Write the proportion equation
21,967,129.97 : 30,314,479.11 = 12,043,848.99 : x - Step 2: Convert to fraction form
21,967,129.97/30,314,479.11 = 12,043,848.99/x - Step 3: Cross multiply
21,967,129.97x = 30,314,479.11 × 12,043,848.99 - Step 4: Simplify right side
21,967,129.97x = 365,103,008,611,349.62 - Step 5: Solve for x
x = 365,103,008,611,349.62/21,967,129.97 - Step 6: Final answer
x = 16,620,423.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.