Finding the Fourth Proportional to 129,488,014.20, 194,232,021.30 and 100,577,623.80
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Solution
The fourth proportional to 129,488,014.20, 194,232,021.30 and 100,577,623.80 is: 150,866,435.70
Step by Step Solution
- Step 1: Write the proportion equation
129,488,014.20 : 194,232,021.30 = 100,577,623.80 : x - Step 2: Convert to fraction form
129,488,014.20/194,232,021.30 = 100,577,623.80/x - Step 3: Cross multiply
129,488,014.20x = 194,232,021.30 × 100,577,623.80 - Step 4: Simplify right side
129,488,014.20x = 19,535,395,168,224,988 - Step 5: Solve for x
x = 19,535,395,168,224,988/129,488,014.20 - Step 6: Final answer
x = 150,866,435.70
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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.