Finding the Fourth Proportional to 129,298,420.20, 194,171,579.10 and 68,832,244.20
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Solution
The fourth proportional to 129,298,420.20, 194,171,579.10 and 68,832,244.20 is: 103,367,585.84
Step by Step Solution
- Step 1: Write the proportion equation
129,298,420.20 : 194,171,579.10 = 68,832,244.20 : x - Step 2: Convert to fraction form
129,298,420.20/194,171,579.10 = 68,832,244.20/x - Step 3: Cross multiply
129,298,420.20x = 194,171,579.10 × 68,832,244.20 - Step 4: Simplify right side
129,298,420.20x = 13,365,265,549,310,816 - Step 5: Solve for x
x = 13,365,265,549,310,816/129,298,420.20 - Step 6: Final answer
x = 103,367,585.84
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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.