Finding the Fourth Proportional to 19,727,999.40, 29,591,999.10 and 14,311,237.80
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Solution
The fourth proportional to 19,727,999.40, 29,591,999.10 and 14,311,237.80 is: 21,466,856.70
Step by Step Solution
- Step 1: Write the proportion equation
19,727,999.40 : 29,591,999.10 = 14,311,237.80 : x - Step 2: Convert to fraction form
19,727,999.40/29,591,999.10 = 14,311,237.80/x - Step 3: Cross multiply
19,727,999.40x = 29,591,999.10 × 14,311,237.80 - Step 4: Simplify right side
19,727,999.40x = 423,498,136,097,486 - Step 5: Solve for x
x = 423,498,136,097,486/19,727,999.40 - Step 6: Final answer
x = 21,466,856.70
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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.