Finding the Fourth Proportional to 129,053,872.20, 193,580,808.30 and 99,828,553.80
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Solution
The fourth proportional to 129,053,872.20, 193,580,808.30 and 99,828,553.80 is: 149,742,830.70
Step by Step Solution
- Step 1: Write the proportion equation
129,053,872.20 : 193,580,808.30 = 99,828,553.80 : x - Step 2: Convert to fraction form
129,053,872.20/193,580,808.30 = 99,828,553.80/x - Step 3: Cross multiply
129,053,872.20x = 193,580,808.30 × 99,828,553.80 - Step 4: Simplify right side
129,053,872.20x = 19,324,892,136,024,036 - Step 5: Solve for x
x = 19,324,892,136,024,036/129,053,872.20 - Step 6: Final answer
x = 149,742,830.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.