Finding the Fourth Proportional to 129,034,102.80, 193,551,154.20 and 86,035,933.20
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Solution
The fourth proportional to 129,034,102.80, 193,551,154.20 and 86,035,933.20 is: 129,053,899.80
Step by Step Solution
- Step 1: Write the proportion equation
129,034,102.80 : 193,551,154.20 = 86,035,933.20 : x - Step 2: Convert to fraction form
129,034,102.80/193,551,154.20 = 86,035,933.20/x - Step 3: Cross multiply
129,034,102.80x = 193,551,154.20 × 86,035,933.20 - Step 4: Simplify right side
129,034,102.80x = 16,652,354,173,534,098 - Step 5: Solve for x
x = 16,652,354,173,534,098/129,034,102.80 - Step 6: Final answer
x = 129,053,899.80
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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.