Finding the Third Proportional to 128,992,624 and 280,659,224
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Solution
The third proportional to 128,992,624 and 280,659,224 is: 610,651,970.43
Step by Step Solution
- Step 1: Write the proportion equation
128,992,624 : 280,659,224 = 280,659,224 : x - Step 2: Convert to fraction form
128,992,624/280,659,224 = 280,659,224/x - Step 3: Cross multiply
128,992,624x = 280,659,224 × 280,659,224 - Step 4: Simplify right side
128,992,624x = 78,769,600,016,282,176 - Step 5: Solve for x
x = 78,769,600,016,282,176/128,992,624 - Step 6: Final answer
x = 610,651,970.43
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.