Finding the Fourth Proportional to 19,586,005.80, 29,379,008.70 and 8,239,266.60
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Solution
The fourth proportional to 19,586,005.80, 29,379,008.70 and 8,239,266.60 is: 12,358,899.90
Step by Step Solution
- Step 1: Write the proportion equation
19,586,005.80 : 29,379,008.70 = 8,239,266.60 : x - Step 2: Convert to fraction form
19,586,005.80/29,379,008.70 = 8,239,266.60/x - Step 3: Cross multiply
19,586,005.80x = 29,379,008.70 × 8,239,266.60 - Step 4: Simplify right side
19,586,005.80x = 242,061,485,123,019.41 - Step 5: Solve for x
x = 242,061,485,123,019.41/19,586,005.80 - Step 6: Final answer
x = 12,358,899.90
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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.