Finding the Fourth Proportional to 19,586,496.80, 29,379,745.20 and 19,474,522.40
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Solution
The fourth proportional to 19,586,496.80, 29,379,745.20 and 19,474,522.40 is: 29,211,783.60
Step by Step Solution
- Step 1: Write the proportion equation
19,586,496.80 : 29,379,745.20 = 19,474,522.40 : x - Step 2: Convert to fraction form
19,586,496.80/29,379,745.20 = 19,474,522.40/x - Step 3: Cross multiply
19,586,496.80x = 29,379,745.20 × 19,474,522.40 - Step 4: Simplify right side
19,586,496.80x = 572,156,506,003,692.38 - Step 5: Solve for x
x = 572,156,506,003,692.38/19,586,496.80 - Step 6: Final answer
x = 29,211,783.60
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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.