Finding the Fourth Proportional to 7,680,881.21, 11,513,274.66 and 3,578,819.91
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Solution
The fourth proportional to 7,680,881.21, 11,513,274.66 and 3,578,819.91 is: 5,364,480.38
Step by Step Solution
- Step 1: Write the proportion equation
7,680,881.21 : 11,513,274.66 = 3,578,819.91 : x - Step 2: Convert to fraction form
7,680,881.21/11,513,274.66 = 3,578,819.91/x - Step 3: Cross multiply
7,680,881.21x = 11,513,274.66 × 3,578,819.91 - Step 4: Simplify right side
7,680,881.21x = 41,203,936,539,331.70 - Step 5: Solve for x
x = 41,203,936,539,331.70/7,680,881.21 - Step 6: Final answer
x = 5,364,480.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.