Finding the Fourth Proportional to 168,403,724.20, 252,605,586.30 and 113,984,165.80
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Solution
The fourth proportional to 168,403,724.20, 252,605,586.30 and 113,984,165.80 is: 170,976,248.70
Step by Step Solution
- Step 1: Write the proportion equation
168,403,724.20 : 252,605,586.30 = 113,984,165.80 : x - Step 2: Convert to fraction form
168,403,724.20/252,605,586.30 = 113,984,165.80/x - Step 3: Cross multiply
168,403,724.20x = 252,605,586.30 × 113,984,165.80 - Step 4: Simplify right side
168,403,724.20x = 28,793,037,030,825,408 - Step 5: Solve for x
x = 28,793,037,030,825,408/168,403,724.20 - Step 6: Final answer
x = 170,976,248.70
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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.