Finding the Fourth Proportional to 99,582,489.60, 149,378,403.84 and 48,403,502.08
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Solution
The fourth proportional to 99,582,489.60, 149,378,403.84 and 48,403,502.08 is: 72,607,522.77
Step by Step Solution
- Step 1: Write the proportion equation
99,582,489.60 : 149,378,403.84 = 48,403,502.08 : x - Step 2: Convert to fraction form
99,582,489.60/149,378,403.84 = 48,403,502.08/x - Step 3: Cross multiply
99,582,489.60x = 149,378,403.84 × 48,403,502.08 - Step 4: Simplify right side
99,582,489.60x = 7,230,437,880,976,520 - Step 5: Solve for x
x = 7,230,437,880,976,520/99,582,489.60 - Step 6: Final answer
x = 72,607,522.77
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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.